## Frank ICSE Solutions for Class 9 Maths – Surface Areas and Volume of Solids

**Ex No: 25.1**

**Solution 1.**

**Solution 2.**

**Solution 3.**

**Solution 4.**

**Solution 5.**

Volume of a cuboid = l x b x h

2400 = 20 × 15 × h

h = 8 cm

Hence, height of the cuboid is 8 cm.

**Solution 6.**

**Solution 7.**

**Solution 8.**

**Solution 10.**

**Solution 11.**

**Solution 12.**

**Solution 13.**

**Solution 14.**

**Solution 15.**

**Solution 16.**

**Solution 17.**

**Solution 21.**

**Solution 22.**

**Solution 23.**

**Solution 24.**

**Solution 26.**

**Solution 27.**

**Solution 28.**

**Solution 30**

**Solution 32.**

**Solution 33.**

**Solution 34.**

**Solution 35.**

**Solution 36.**

**Solution 39.**

**Ex No: 25.2**

**Solution 1.**

**Solution 2.**

**Solution 3.**

**Solution 4.**

**Solution 5.**

**Solution 6.**

**Solution 7.**

**Solution 9.**

**Solution 10.**

**Solution 11.**

**Solution 12.**

**Solution 13.**

**Solution 15.**

**Solution 16.**

**Solution 17.**

**Solution 18.**

**Solution 19.**

**Solution 20.**

**Solution 21.**

**Solution 23.**

**Solution 25.**

**Solution 26.**

**Solution 27.**

**Solution 28.**

**Solution 29.**

**Solution 30.**

**Solution 31.**

**Ex No: 25.3**

**Solution 1.**

**Solution 2.**

**Solution 3.**

**Solution 4.**

**Solution 5.**

**Solution 6.**

**Solution 7.**

**Solution 8.**

**Solution 9.**

**Solution 10.**

**Solution 11.**

**Solution 12.**

**Solution 13.**

**Solution 14.**

**Solution 15.**