In a certain boys camp, $20\%$ of the total boys are from school $A$ and $30\%$ of those study science. If there

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Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Sat Nov 27, 2021 4:21 am

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In a certain boys camp, $20\%$ of the total boys are from school $A$ and $30\%$ of those study science. If there are $49$ boys in the camp that are from school $A$ but do not study science then what is the total number of boys in the camp?

A. 70
B. 245
C. 150
D. 35
E. 350

Answer: E

Source: GMAT Paper Tests

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Source: Beat The GMAT — Problem Solving | Sat Nov 27, 2021 4:21 am

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