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# The ratio of girls to boys in a class is 6: 7. If there are

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The ratio of girls to boys in a class is 6: 7. If there are [#permalink]  18 Mar 2020, 11:29
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Question Stats:

90% (00:19) correct 9% (00:50) wrong based on 11 sessions
The ratio of girls to boys in a class is 6: 7. If there are 18 girls, how many total students are in the class?

A. 18

B. 21

C. 27

D. 28

E. 39

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[Reveal] Spoiler: OA

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Manager
Joined: 02 May 2020
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Re: The ratio of girls to boys in a class is 6: 7. If there are [#permalink]  29 Jul 2020, 10:39
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Let no. of girls be 6x. So boys = 7x
6x = 18
=> x = 3
=> boys = 7*3 = 21
=> total students = 18 + 21 = 39

Re: The ratio of girls to boys in a class is 6: 7. If there are   [#permalink] 29 Jul 2020, 10:39
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