Question

The average height of 5 boy is 160 centimetres the height of 4 boys are 152cm , 156cm ,164 cm and 160 cm . Find the height of the fifth boy

Answer 1

hope it helps you lot

Answer 2

Let the height of boys be, b1, b2, b3, b4, b5

Given, (b1+b2+b3+b4+b5)÷5 = 160

We know,
b1 =152
b2=156
b3=164
b4=160

Therefore,
(152 + 156 + 164 + 160 + b5)÷5 = 160
=>632 + b5 = 160 × 5
=>b5 = 800- 632
=>b5 =168

Therefore height of 5th boy = 168 cms