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If Biff can shape 3 surfboards in 50 minutes, how many surfboards can
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30 Apr 2021, 05:22
30 Apr 2021, 05:22
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If Biff can shape 3 surfboards in 50 minutes, how many surfboards can he shape in 5 hours?
(A) 16
(B) 17
(C) 18
(D) 19
(E) 20
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) 16
(B) 17
(C) 18
(D) 19
(E) 20
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: If Biff can shape 3 surfboards in 50 minutes, how many surfboards can
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30 Apr 2021, 05:44
30 Apr 2021, 05:44
Carcass wrote:
If Biff can shape 3 surfboards in 50 minutes, how many surfboards can he shape in 5 hours?
(A) 16
(B) 17
(C) 18
(D) 19
(E) 20
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) 16
(B) 17
(C) 18
(D) 19
(E) 20
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
We can solve this question by applying some number sense
NOTE: 5 hours = 300 minutes
Given: Biff can shape 3 surfboards in 50 minutes.
So: Biff can shape 6 surfboards in 100 minutes [If we DOUBLE the amount of time Biff has, we DOUBLE his output]
Likewise, Biff can shape 9 surfboards in 150 minutes. [If we TRIPLE the amount of time Biff has, we TRIPLE his output]
.
.
.
Biff can shape 18 surfboards in 300 minutes [If multiply Biff's work time by 10, we multiply his output by 10]
Answer: C
Cheers,
Brent
gmatclubot
Re: If Biff can shape 3 surfboards in 50 minutes, how many surfboards can [#permalink]
30 Apr 2021, 05:44
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