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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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
$∴ 2500 = 1100 + 200 x \Rightarrow 200 x = 2500 - 1100 \Rightarrow 200 x = 1400 \Rightarrow x = \frac{1400}{200} = 7$
Hence, the carpenter worked for 7h.

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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?

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.

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?