Question

40 boys and 28 girls hold hands in a big circle. Exactly 18 boys give their right hand to a girl. How many boys give their left hand to a girl??
a)18 b) 9 c)28 d) 14 e)20
explain with step by step; please.​

Answer 1

total number of boys = 40

total number of girls = 28

then, total number of boys and girls are = 68

Now, if exactly 18 boys give their right hand to a girl, then the number of boys who gives their left hand to a girl is ::

= 40 - 18

= 28

Hence, 28 boys gives their left hand to a girl.

I hope it will helps you friend