Question

In a sports meet, group of boys and girls are to be formed. Each group consists of 4 boys and 6 girls. How many boys are required, if 102 girls are available for such groupings?

Answer 1

give n that 
boys = 4 
girls = 6
boys = x
girls = 102

4/6 = x/102
2/3 = x/102
2 = x /34
x = 32×2
x = 64
∴ the boys are 64

Answer 2

the answer is 34*2 = 68......no. of boys =68......yeah