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CBSE Class 8 Answered

How many silver coins, 1.75 cm in diameter and of thickness 2 mm, must be melted to form a cuboids of dimensions?
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
answered-by-expert Expert Answer

Coins are cylindrical in shape.

Height (h1) of cylindrical coins = 2 mm = 0.2 cm

Radius (r) of circular end of coins =

Let n coins were melted to form the required cuboids.

Volume of n coins = Volume of cuboids

Hence, number of coins melted to form such cuboids is 400.

Answered by | 04 Jun, 2014, 03:23: PM

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