Question

12) Two numbers are in the ratio 5:7If their HCF is 4, Find the number
1) 15,21
21 20,28
3) 25,35
4) 30,42​

Answer 1

Answer:

The answer is 2.

Explanation:

As there are options, it is easier.

The ratio of 20:28 is 5:7. The HCF of these numbers is 4.

Answer 2

Answer:Option 2

Explanation:

Let the numbers be 5x and 7x

And HCF be x

In question HCF=4 (given)

4=x

x=4

Therefore 5x=5×4

=20

7x=7×4

=28

The numbers are 20 and 28