<p>If 1 worker can deliver 1 letter in 5 minutes, how many letters would 120 workers deliver in 120 minutes?</p>
<p>I know it is so dumb to ask such a silly question, but as the book's method isn't working, I would appreciate it if you showed me YOUR methods...</p>
<p>One more thing, it is from December's 2010 SAT exam, I was able to solve it and I believe the answer is 24 letters. Verify if it is wrong.</p>
<p>THANK YOU.</p>
<p>I would take it step-by-step, meaning:</p>
<p>1 worker can deliver 1 letter in 5 minutes
1 worker can deliver 24 letters in 120 minutes -more time = more letters proportionally, this should be intuitive
120 worker can deliver 2880 letters in 120 minutes -more people = more letters</p>
<p>^That is somehow awkward. For the MCs contained only 1-digit and 2-digit numbers, the highest was in the 20s or 30s.</p>
<p>Thanks, anyway!!</p>
<p>The answer on dec SAT was 24 only.
I believe you have not written the correct problem.
Pascal12’s answer is correct for the problem you have listed.</p>
<p>Think about it. According to your question, one worker does one letter in 5 minutes. => in 120 min he does 120*1/5= 24.
With your question the ultimate answer cannot be 24 because 24 letters are delivered by one worker itself in 120 mins.
I’m sorry but I don’t remember the correct problem.</p>
<p>Problem: how many people to deliver 120 letters in 2 hours.
answer:5</p>
<p>
</p>
<p>Pascal12 was correct in arriving at his/her steps. Corollary:
5 worker can deliver 2880/24 = 120 letters in 120 minutes</p>
<p>OP, I believe the choices were as follows:</p>
<p>5
12
24
?? (two-digit)
120</p>
<p>120 is awkward enough… 5 is the best answer here, as pascal12 and I have explained.</p>
<p>
Yep, this was it.
For one worker, 5 min->1 letter
120 min -> 120/5= 24 letters.
Total letters= 120
No. of workers = 120/24= 5.
Oh yeah, this was the question which had a lot of same numbers being repeated. I remember now. :D</p>