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# Billy worked for three straight hours on his homework questions. If he

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Math Expert
Joined: 02 Sep 2009
Posts: 64246
Billy worked for three straight hours on his homework questions. If he  [#permalink]

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29 Jun 2016, 06:57
00:00

Difficulty:

25% (medium)

Question Stats:

88% (01:26) correct 13% (03:10) wrong based on 20 sessions

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Billy worked for three straight hours on his homework questions. If he solved 132 questions in the third hour, which was twice as many as he solved in the second hour, and three times as many questions as he solved in the first hour, how many questions did he solve total?

A. 242
B. 312
C. 424
D. 525
E. 622

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Re: Billy worked for three straight hours on his homework questions. If he  [#permalink]

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29 Jun 2016, 07:25
Bunuel wrote:
Billy worked for three straight hours on his homework questions. If he solved 132 questions in the third hour, which was twice as many as he solved in the second hour, and three times as many questions as he solved in the first hour, how many questions did he solve total?

A. 242
B. 312
C. 424
D. 525
E. 622

3rd hour:
132

2nd hour:
132/2=66

1st hour:
132/3=44

44+66+132=242

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Joined: 04 Jun 2016
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Re: Billy worked for three straight hours on his homework questions. If he  [#permalink]

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29 Jun 2016, 08:08
Bunuel wrote:
Billy worked for three straight hours on his homework questions. If he solved 132 questions in the third hour, which was twice as many as he solved in the second hour, and three times as many questions as he solved in the first hour, how many questions did he solve total?

A. 242
B. 312
C. 424
D. 525
E. 622

THIRD HOUR = 132 + SECOND HOUR =$$\frac{132}{2}$$= 66 FIRST HOUR =$$\frac{132}{3}$$ = 44
Total = 44+66+132=242

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Re: Billy worked for three straight hours on his homework questions. If he  [#permalink]

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29 Jun 2016, 09:08
Bunuel wrote:
Billy worked for three straight hours on his homework questions. If he solved 132 questions in the third hour, which was twice as many as he solved in the second hour, and three times as many questions as he solved in the first hour, how many questions did he solve total?

A. 242
B. 312
C. 424
D. 525
E. 622

Total questions solved= questions solved in 3rd hr+ in 2nd hr +in 1st hr

132 +132/2 +132/3= 242

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Re: Billy worked for three straight hours on his homework questions. If he  [#permalink]

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04 Jul 2016, 01:49
132x (1+½ +⅓)=242

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Re: Billy worked for three straight hours on his homework questions. If he   [#permalink] 04 Jul 2016, 01:49