Question

Between which of the following numbers does the value of 3√38.9 lies​

Answer 1

√38.9

6^2=36

7^2=49

6<√38•9<7

Multiply by 3

18<3√38•9<21

It lies between 18 and 21

We can also say that √38•9<6•3

So

3√38•9 lies between 18 and 19.

Note-: all these are approximations as you have not added the options in your answer.