Answers

2014-04-13T23:57:06+05:30


Let, the total number of students be x

Number of boys students = x - 5x/8  = 3x/8

ATQ,     5x/8 - 3x/8 = 120

       or,   2x/8 = 120

       or,    2x = 120 x 8

       or,     x = 960/2

       or,     x = 480

Therefore the total strength of the school is 480.

                                     

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2014-04-14T07:24:42+05:30
Let total strength be x .
girls=5/8x
boys=x-5/8x=3/8x
3/8x+120=5/8x
120=5/8x-3/8x
120=2/8x
120=1/4x
120*4=x
x=480
total student is 480

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