Question

please answer this question

Answer 1

hey mate

here is your answer

let the total number of girls be x

hence the sum of height of all girls =112/100*x metre

the sum of height of 32 girls=32*115/100 metre

the sum of height of remaining girls=106/100(x-32) metres

according to question:

112/100*x=115/100*32. + 106/100*(x-32)

112x=115*32. + 106(x-32)

112x=3680+106x-3392

112x-106x=288

6x=288

x=48(answer)