Question

A gas pipe is 18 m long. Find the cost of nickel plating on the outer surface of the
pipe at the rate of Rs.50 per square metre if its diameter is 0.4 m.​

Answer 1

Answer:

So, plating required = surface area of the pipe = A = Plating required = 2.2608 meter square. Price per square meter = 50 Rs. So, the price for coating is 50*2.2608 = 113.04 Rs

Answer 2

Answer:

113.04

Explanation:

So, plating required = surface area of the pipe = A = Plating required = 2.2608 meter square. Price per square meter = 50 Rs. So, the price for coating is 50*2.2608 = 113.04 Rs