Find the cost of coating the surface.

Three cubes of silver with edges 3 cm, 4 cm and 5 cm are melted and recast into a single cube. Find the cost of coating the surface of the new cube with gold at the rate of Rs. 3.50 per square centimetre.

Solution:

ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 24.1
ML Aggarwal Class 9 Solutions for ICSE Maths Chapter 16 Mensuration 24.2

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