Question

A nine year old boy is 120cm tall. If the present height of the boy is 75% of his full height calculate the full height which the boy will eventually reach at the end of growth period​

Answer 1

Answer:

160 cm

Explanation:

let the full height of the boy be x

then

given,

75% of x = 120

x = 120 × 4/3 (bcoz 75% = 3/4)

hence, x = 40 × 4

= 160 cm