Question

Find the least number which when divided by 28, 50 and 140 leaves a remainder 7 ​

Answer 1

Answer: 21

Explanation:

Answer 2

Let's solve :

First we have to find LCM (lowest common multiple) of the given number, i.e 700.

• 28 = 2 × 2 × 7

• 50 = 2 × 5 × 5

• 140 = 2 × 2 × 5 × 7

LCM = 2 × 2 × 5 × 5 × 7 = 700

now, let's add 7 to 700

We get the required number as 707