$1,000 per year or $300 every six months?

Marilyn is completely wrong. Try making her the same offer and see which one she accepts.

You get a $300 pay raise at the end of six months. Then you get a $300 pay raise at the end of the year. Net increase: $600

OR

You get a $1,000 pay raise at the end of the year. Net increase: $1,000.

At the end of the first year you are $400 behind with the six-month scheme. You stay behind and fall further behind as long as you keep the scheme going.

Cecil says, “A semiannual raise of $300 is an annual increase of $600, and if you have two such increases per year your annualized salary hike is $1,200.” Also wrong. Your annualized pay increase is $600.

It says “a semiannual pay raise”, not “a semiannual annual pay raise”.

Yes, yes, you’re very smart. Now answer this: does “a $300 pay raise” refer to $300 annually, or $300 per six months (which is the period in question)? And why?
Powers &8^]

Questions like this are semantic hide-and-seek, the kind stat professors love to trip you up with if you don’t interpret every word exactly right.

If you make it a straight mathematical proposition, there are no loose ends to figure out. Define the question exactly and it’s kitchen math.

No, you are not $400 behind at the end the first year. You got $300 over base salary mid-year. So, that’s +300 more. Then at the end of the year, you get a $600 raise which is $600 added to the $300 you already got mid-year. That’s $900 raise at the end of the first year. That’s only $100 behind.

Now, if you keep remembering to keep a running total of what they received previously, the one with the six-month $300 winds up with more.

Can I get my yearly $1000 raise added to my monthly wage? Why not? It never said I couldn’t.

If it is a semiannual $300 raise it is:

Year 1: 5300+5600=10900 vs. 10000+1000=11000
Year 2: 5900+6200=12300 vs. 11000+1000=12000
Year 3: 6500+6800=13300 vs. 12000+1000=13000
Year 4: 7100+7400=14500 vs. 13000+1000=14000

You lose in the first year, but are better off thereafter.

I’ll be helpful and provide a link so we all can play along.

What’s better, a $1,000 raise each year, or a $300 raise every six months?

Note that the conditions specified that the pay raise was at the END of the 6-month or 1-year period and that it was not paid as a bonus. So if the starting salary was $10,000 annually ($5000 semi-annually) and they took the semi-annual raise, that meant they worked the first six months at the original $5000 rate and for the second six months at the $5300 rate. If they took the $1000 raise at the END of the first year (and it was not paid out retroactively or as a lump sum), that meant they worked for $10,000 for the whole first year, but earned $11,000 for the second year.

Year 1: 5000+5300=10300 vs. 10000+0000=10000
Year 2: 5600+5900=11500 vs. 10000+1000=11000
Year 3: 6200+6500=12700 vs. 11000+1000=12000
Year 4: 6800+7100=13900 vs. 12000+1000=13000

The question is, do you interpret the $300 raise as being $300 per year or $300 per half-year? The above calculation assumes it is $300 per half-year. But given that the original salary was stated as an annual amount ($10,000 per year), it seems inconsistent to assume that the raise would be stated as a semi-annual amount. The original question does not clarify this.

Why isn’t the 1000 raise 1000 per half year?

There are no specific words in the question to indicate that the raises are treated differently: look at each phrase and try to find a point of differentiation:

The only points of differentiation in the words as written is when the raises occur, there is no difference in word choice describing the raise and therefore no justification for treating the phrases differently. For all we know, it could be hourly raise. But what we do know is that the manner of raise is no different between scenarios, not on the basis of any actual words present.

An important piece of information that is needed to answer the question is how long you will be working there.

If you work there only one year then the $300 raise every 6 months is better.
Even with the interpretation that your 6 month salary goes up $150 every 6 months.

You get $10,150 with the $300 raise and only $10,000 with the $10,000 raise

But suppose your 6 month salary goes up by $300 every 6 months as Marilyn interpreted it.

You will make more money with the the $300 raise as long as you work there less than 8 years. But if you work there longer than 8 years the $1000 raise is better

I calculated it all in Excel below

The 2nd and 4th columns show the money made in each 6 month period with both types of raises.

The 3rd and 5th columns show the cumulative salary made for each type of raise.

At 8 years you break even. After that, the $1000 raise gives you more total money.

Time
yrs $300 cumul. $1,000 cumulative
0.5 5000 5000 5000 5000
1.0 5300 10300 5000 10000
1.5 5600 15900 5500 15500
2.0 5900 21800 5500 21000
2.5 6200 28000 6000 27000
3.0 6500 34500 6000 33000
3.5 6800 41300 6500 39500
4.0 7100 48400 6500 46000
4.5 7400 55800 7000 53000
5.0 7700 63500 7500 60500
5.5 8000 71500 8000 68500
6.0 8300 79800 8500 77000
6.5 8600 88400 9000 86000
7.0 8900 97300 9500 95500
7.5 9200 106500 10000 105500
8.0 9500 116000 10500 116000
8.5 9800 125800 11000 127000
9.0 10100 135900 11500 138500
9.5 10400 146300 12000 150500
10 10700 157000 12500 163000

You messed up the fourth column.
Beginning at year 4.5, you started giving him $500 semi-annual raises instead of $1000 annual raises.

If you don’t know what I’m saying, read down the fourth column and notice the pattern: The number goes up by $500 every second entry, then it suddenly starts going up by $500 for every entry.

Darn. You’re absolutely right.

It was hard to copy the formulas properly as every other line was a different formula

I fixed it then redid it all the way up to 64 years and the $300 raise was still better. I got tired of copying cells by then.

Thanks for finding the error!

The patterns listed above are not correct. Let’s call the $1,000 annual raise “Plan A” and the $300 every six months raise “Plan B”.
End of first six months Plan B ahead $300
End of second six months Plan A ahead $400
End of third six months Plan A ahead $100
End of fourth six months Plan A ahead $800
End of fifth six months Plan A ahead $500

So the six-month pattern for Plan A is -$300, +$400, +$100, +$800, +$500, +$1,200, etc. Basically, -$300, +$700 repeating.

And semantics play a part in many word problems, but in Marilyn’s explanation she claimed that Plan B put you ahead by a specific number of dollars. That shows that her intent was to answer which plan was better financially. So her answer is wrong by her own criterium.

I’ve already told you above that is incorrect. At the end of the second six months plan A is only ahead $100. Plan B got $300 over base salary at the end of the first six months and then in addition to the $300 already received another $600 at the end of the second six months.

So, what is $300 plus $600?

Folks, here’s pro-tip for presenting tables in vBulletin: use the “code” feature. It will preserve formatting spaces and you can use a fixed width font.

Example from Demiurge:


Time                
yrs    $300     cumul.   $1,000   cumulative
0.5    5000      5000     5000      5000
1.0    5300     10300     5000     10000
1.5    5600     15900     5500     15500
2.0    5900     21800     5500     21000
2.5    6200     28000     6000     27000
3.0    6500     34500     6000     33000
3.5    6800     41300     6500     39500
4.0    7100     48400     6500     46000
4.5    7400     55800     7000     53000
5.0    7700     63500     7500     60500
5.5    8000     71500     8000     68500
6.0    8300     79800     8500     77000
6.5    8600     88400     9000     86000
7.0    8900     97300     9500     95500
7.5    9200    106500    10000    105500
8.0    9500    116000    10500    116000
8.5    9800    125800    11000    127000
9.0   10100    135900    11500    138500
9.5   10400    146300    12000    150500
10    10700    157000    12500    163000


And just to fix his numbers:


Time                
yrs    $300     cumul.   $1,000   cumulative
0.5    5000      5000     5000      5000
1.0    5300     10300     5000     10000
1.5    5600     15900     5500     15500
2.0    5900     21800     5500     21000
2.5    6200     28000     6000     27000
3.0    6500     34500     6000     33000
3.5    6800     41300     6500     39500
4.0    7100     48400     6500     46000
4.5    7400     55800     7000     53000
5.0    7700     63500     7000     60000
5.5    8000     71500     7500     67500
6.0    8300     79800     7500     75000
6.5    8600     88400     8000     83000
7.0    8900     97300     8000     91000
7.5    9200    106500     8500     99500
8.0    9500    116000     8500    108000
8.5    9800    125800     9000    117000
9.0   10100    135900     9000    126000
9.5   10400    146300     9500    135500
10    10700    157000     9500    145000


And as the corrected numbers show, you stay ahead with an increase of $300 every six months.

“$1000 raise at the end of one year” is pretty straightforward, because your salary is stated as an annual salary. It’s correlating annual numbers to annual numbers, and so “you get $1000 more the next year”.

The ambiguity comes from “$300 raise at the end of each six months”. To many people, that reads “you get $300 more every six months”. That’s the interpetation that Marilyn uses and how that method comes out ahead.

But you point out that the original salary was stated as an annual salary, so the raise amount should be stated in the same base. Nonsense, where does it say the $300 is an annual increase? It says you get $300 raise each six months.

That’s because people are not machines, and change their points of reference on a whim, in the middle of a sentence, without a clear declaration that’s what they’re doing. It takes contextual interpretation to understand the intent. And that’s also part of why we often have miscommunications, and both parties adamantly believe they are right and the other person is wrong on a conversation both participated in.

If I were to receive an offer like that, I would clarify what “$300 raise each six months” means. Because I could totally see an unscrupulous boss make that offer, with his intention being “I will increase your annual salary $300 each six months”, which makes it only $150 more for the six month period, but hoping I’ll take it as the $300 for the six month period and take that deal.

Doing the numbers for the $150 more each six months interpretation:


Time                
yrs    $150     cumul.   $1,000   cumulative
0.5    5000      5000     5000      5000
1.0    5150     10150     5000     10000
1.5    5300     15450     5500     15500
2.0    5450     20900     5500     21000
2.5    5600     26500     6000     27000
3.0    5750     32250     6000     33000
3.5    5900     38150     6500     39500
4.0    6050     44200     6500     46000
4.5    6200     50400     7000     53000
5.0    6350     56750     7000     60000
5.5    6500     63250     7500     67500
6.0    6650     69900     7500     75000
6.5    6800     76700     8000     83000
7.0    6950     83650     8000     91000
7.5    7100     90750     8500     99500
8.0    7250     98000     8500    108000
8.5    7400    105400     9000    117000
9.0    7550    112950     9000    126000
9.5    7700    120650     9500    135500
10     7850    128500     9500    145000


Exactly. And Marilyn, in that ancient column, defines things in a way that almost nobody else ever does to come up with her absurd answer.

If you’re making a salary of $10,000 a year, you can think of it if you want as earning a salary of $5000 per demiyear, but no one ever does. And on whatever official piece of paper, Word document, or whatever sitting in HR’s paper or computer files that defines your salary, it says “$10,000 per year.” When they give you a raise, they’re going to cross out that ‘10,000’ and replace it with the new amount, but they’re not going to cross out the ‘year’ and replace it with a new time period, regardless of the frequency of the raises.

Marilyn’s answer comes from an alternate universe where the frequency of the raises also determines the time period over which your salary is defined. And it’s accurate in that universe! Just not in this one.

For grins, to put it all in one table for easy reference:



year  $150/  tot for  cummul.  $300/  tot for   cummul.  $1000/ tot for   cummul.
      6 mo     year            6 mo    year               yr      year
-----------------------------------------------------------------------------------------------
0.5   5000             5000    5000             5000     5000              5000
1.0   5150   10150    10150    5300   10300    10300     5000    10000    10000
1.5   5300            15450    5600            15900     5500             15500
2.0   5450   10750    20900    5900   11500    21800     5500    11000    21000
2.5   5600            26500    6200            28000     6000             27000
3.0   5750   11350    32250    6500   12700    34500     6000    12000    33000
3.5   5900            38150    6800            41300     6500             39500
4.0   6050   11950    44200    7100   13900    48400     6500    13000    46000


Etc. The manual entry and formatting is too tedious.

That’s bullshit. I gave a clear description of how the wording is ambiguous, and how it could easily be interpreted to mean you get an additional $300 every six months.

Yes, but what number are they going to write in? English doesn’t work like computer code. When someone says “I’ll give you a $300 raise every six months”, that sounds an awful like “I’ll give you an additional $300 every 6 months”, not “I’ll give you an additional $150 every 6 months”.

No, Marilyn’s answer comes from a universe where English can be ambiguous and people are not computers.

Life among the befuddled. There is no ambiguity to the question. It’s a $300 raise every six months or a year-end raise of $1,000 each year. No matter how you slice it the $1,000 every year is a better deal. And I stand by my pattern for Plan A compared to Plan B. In six month increments the pattern is -$300, +$700 repeating.

What is a mystery is how Marilyn can say that Plan B puts you “ahead” by a certain number of dollars. The only time Plan B is ahead is between the end of month six and the end of month twelve.