Question

The volume of this cube is 140,608 cubic yards. What is the value of s?

Answer 1

Hi,

Given number is 140608

Solution :

140608 is an even number so it's

cube root has to an even number.

Step 1:

Make two groups from right to left.

First group = 608

Second group = 140

Step 2:

First group unit digit 8. So unit

digit of cube root will be 2.

(2x2x2 = 8)

Step 3:

Second group : (140)

140 lies between (5³= 125) and

So, take the smaller number 5 as ten's place digit.

Therefore,

cube root of 140608 = 52

I hope this helps you.

:)