Question

do no. 15

with the solution ​

Answer 1

Step-by-step explanation:

let the no.of rectangular block be n.

A/Q,

n×volume of rectangular block =volume of box

n×5/2×2×3/2=90×78×42

n×15/2=90×78×42

n=90×48×42×2/15

n=6×48×42×2

n=24192

Therefore 24192 books can be kept in the box...