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Fractions -Jack brought a 12-slice pizza to a party so that
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30 Jul 2015, 04:28
30 Jul 2015, 04:28
00:00
Question Stats:
50% (01:55) correct
50% (03:24) wrong based on 2 sessions
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Jack brought a 12-slice pizza to a party so that everybody could have a slice. If only five people had one slice each, and then Jack helped himself to one-fourth of the remaining pizza, then what fraction of the pizza is left after Jack has helped himself? Give your answer in its simplest form.
Ans: 1/3
My answer was 21/4 which was wrong.As I solved considering 1/4 of 7 pieces left.
Pls explain.
Ans: 1/3
My answer was 21/4 which was wrong.As I solved considering 1/4 of 7 pieces left.
Pls explain.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: Fractions
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24 Aug 2015, 11:58
24 Aug 2015, 11:58
victory wrote:
Jack brought a 12-slice pizza to a party so that everybody could have a slice. If only five people had one slice each, and then Jack helped himself to one-fourth of the remaining pizza, then what fraction of the pizza is left after Jack has helped himself? Give your answer in its simplest form.
Are you transcribed the question correctly?
1 slice = 1/12 of pizza
Five people had 1 slice. So, 5/12 of the pizza has been EATEN.
This means 7/12 of the pizza REMAINS
Jack ate one-fourth of the REMAINING pizza
So, Jack ate 1/4 of 7/12 of the pizza.
ORRR we can say that Jack DIDN'T EAT 3/4 of 7/12 of the pizza.
(3/4)(7/12) = 7/16
So, 7/16 of the pizza REMAINS
Cheers,
Brent - Greenlight Test Prep (a FREE and comprehensive GRE video course)
Re: Fractions -Jack brought a 12-slice pizza to a party so that
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17 Oct 2015, 00:15
17 Oct 2015, 00:15
Yeah his answer is correct dear!! My daughter loves pizza. Whenever we are out for eating she always orders pizza for herself. Her 18th birthday is about to come and I really want to throw a fun pizza party at her favorite and the best party hotel nyc.
