LCM and HCF of two numbers are 140 and 5 respectively. If one of the numbers is 35, then find the other number.

Correct option is D

Given:

LCM of the two numbers = 140

HCF of the two numbers = 5

One of the numbers = 35

Formula Used:

LCM × HCF = a × b

Solution:

Substitute the given values into the formula:

140 × 5 = 35 × x

700 = 35 × x

x = $$\frac{700}{35}$$​ = 20

Thus, the other number is 20.