Question

A dozen identical Books are stacked one above the other to a height of 72 CM if 5 more books are added to the stack what will be height of the stack

Answer 1

Step-by-step explanation:

Since, books are identical in shape and size.

Therefore,

Height of 12 books = 72 cm (Given)

So, height of one book= $\frac {72}{12}= 6\: cm$

Now total books in the stack = 12 + 5 = 17

Therefore,

New height of the stack = 17 x 6 = 102 cm