**GSEB Solutions for Class 8 Mathematics – Revision 1(Sem – I) ****(English Medium)**

GSEB SolutionsMathsScience

**Revision 1**

**Solution 1:**

**Solution 2:**

- A number having digit 2 at its units place, then its cube will have digit 8 at its unit place.
- The cube root of 42,875 is 35 (find by assuming, not by calculation).

**Solution 3:**

Here, in the group, prime factor 2 forms a group of three, but in the second group, prime factor 2 appears only once and in the third group, prime factor 5 appears only twice.

∴ 400 is not a perfect cube number.

**Solution 4:**

**Solution 5:**

**Solution 6:**

**Solution 7:**

**Solution 8:**