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ICSE Class 7 Answered

There are 64 students in class. The number of boys are 3 by 5th of number of girls find the number of girls and boys
Asked by ankitha2007 | 28 Apr, 2020, 01:19: PM
Expert Answer
Total number of students in a class = 64
Let x be the number of girls in the class, so number of boys will be 64-x.
According to the question,
No. of boys = 3/5 No. of girls
therefore space 64 minus straight x equals 3 over 5 straight x
therefore space 5 left parenthesis 64 minus straight x right parenthesis equals 3 straight x
therefore space 320 minus 5 straight x equals 3 straight x
therefore space 320 equals 8 straight x
therefore space straight x equals 40
Hence comma space the space number space of space girls space is space 40 space and space the space number space of space boys space is space 24.
Answered by Renu Varma | 28 Apr, 2020, 06:11: PM
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