Question

The thickness of a science book is 20mm and that of a mathametics book is 28mm. Books of each subject are stacked up in separate pile find the minimum height of each pile such that both piles are of same height​

Answer 1

Step-by-step explanation:

So here what we have to do just find put the LCM of the given two thickness i.e. 140 cm

This describes that if we separate the piles for minimum height just find out the LCM

HOPE IT HELPS..!!

Answer 2

Given : The thickness of a science book is 20mm & that of a mathematics book is 28mm

Books of each type are stacked up in two separate piles

To Find :  a. What will be the minimum height of each pile such that both piles are of the same height?

b. Find the number of books in each pile.

Solution:

We need to Find LCM of  20 & 28

20 = 2 *  2 * 5

28 = 2 * 2 * 7

LCM = 2 * 2 * 5 * 7  =  140

140 mm is the minimum height of piles

Book of thickness 20 mm = 140/20 = 7

Book of thickness 28 mm = 140/28 = 5

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