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Last year Manfred received 26 paychecks. Each of his first 6

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Joined: 10 Apr 2018
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Re: Last year Manfred received 26 paychecks. Each of his first 6  [#permalink]

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New post 16 Aug 2018, 01:18
Hi,
We are given that there are 26 paychecks in all. 6 paychecks each pay $750, and rest of 20 paychecks each pay $30 more than $750.

New avg= 750+(20*30)/26.

Now lets assume there were 30 paychecks in total. 6 paychecks each pay $750, and rest of 24 paychecks each pay $30 more than $750. ( i just picked a number that would cancel the 30 in the numerator)


By 20th paychecks the average would have increased by 21. How {(14*30)/20}=21
By 30th paychecks the average would have increased by 24. How {(24*30)/20}=24

So the new avg would be between 771 to 774
We have 773 as option
Hence Choice D .

Probus
Re: Last year Manfred received 26 paychecks. Each of his first 6 &nbs [#permalink] 16 Aug 2018, 01:18

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