Answers

  • qais
  • Content Quality
2016-01-19T11:34:27+05:30
girls to boys ratio is 3:7
let the number of boy be x
A/q
30/x = 3/7
⇒x =(30×7)/3
      = 70
number of boys will be 70
0
2016-01-19T12:28:02+05:30
21 boys are there. ne 9 girls
0