Question

if a boy is 11 year old and has 80% of his full height of he is 120 CM calculate his full height at the end of his growth period

Answer 1

I hope this will help you

Answer 2

let the total height be x
120 = 80/100x
120= 8x/10
120× 10/ 8= X
1200/8=X
150= x
the height of boy is 150 cm