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phaedrus82
- Newbie | Next Rank: 10 Posts
- Posts: 3
- Joined: Sat Aug 22, 2009 8:45 pm
Last year Manfred received 26 paychecks. Each of his first 6 paychecks was $750; each of his remaining paychecks was $30 more than each of his first 6 paychecks. To the nearest dollar, what was the average amount of his paychecks for the year?
A) $752
B) $755
C)$765
D) $773
E) $775
The answer explanation only shows how you could solve this by calculating it out in full... i.e. working out (6(750)+20(780))/26. I can ballpark it down to 2 answers right off the bat, noticing that the average is weighted on the 780 paycheck side, but that is as far as I can go w/o calculation. Is there a better way, not involving time consuming calculation, to find the answer here?
A) $752
B) $755
C)$765
D) $773
E) $775
The answer explanation only shows how you could solve this by calculating it out in full... i.e. working out (6(750)+20(780))/26. I can ballpark it down to 2 answers right off the bat, noticing that the average is weighted on the 780 paycheck side, but that is as far as I can go w/o calculation. Is there a better way, not involving time consuming calculation, to find the answer here?
