Question 109Solve the followingA carpenter charged Rs 2

Question 109Solve the followingA carpenter charged Rs 2
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Question 109

Solve the following

A carpenter charged Rs. 2500 for making a bed. The cost of materials used is Rs. 1100 and the labour charge is Rs. 200 per hour. For how many hours did the carpenter work?

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Right Answer is:

SOLUTION

Let the carpenter worked for x h.
Given, labour charge=Rs. 200 per hour
Then, total labour charge =Rs. 200x
As, amount charged by carpenter for making a bed= Cost of materials+Total labour charge
∴2500=1100+200x⇒200x=2500−1100⇒200x=1400⇒x=1400200=7
Hence, the carpenter worked for 7h. 

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