Answers

  • qais
  • Content Quality
2016-01-30T10:21:41+05:30
Number of girls be G
and number of boys be B
A/q
B +4 = G
and B +G = 28
⇒B +4 + B = 28
⇒2B = 24
⇒B = 12 
so G = 16
ratio = 16/12 = 4/3 = 4:3
0
2016-01-30T10:22:34+05:30
Total students = 28
let us assume no. of boys = x
then no. of girls = x + 4
total no. students is
x + x + 4 = 28
2x = 28 - 4
2x = 24
x = 12
no. of boys = 12
no. of girls = 16
ratio is 16:12 or 4:3
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