Gas meter readings at a beginning and an end of a period were 8247 and 8631.
The cost of gas is 11p per unit. The fixed cost is 25.57. What is the cost of gas?
Answers
8631-8247 = 384
384 x 0.11 = 42.24
42.24 + 25.57 = 67.81
Given:
Gas meter reading at the beginning of the period was 8247
Gas meter reading at the end of the period was 8631
The per unit cost of the gas = 11 paise = Rs. 0.11 ..... [since 100 paise makes 1 rupee]
The fixed cost = Rs. 25.57
To find:
The cost of the gas
Solution:
We have been given the gas meter readings at the beginning and end of the period.
∴ The units used during the given period = 8631 - 8247 = 384
So, The cost of the gas for the 384 units used = 384 × Rs. 0.11 = Rs. 42.24
Also a fixed charge of Rs. 25.57 was added on to the cost
Thus,
The final cost of the gas will be,
= Rs. 42.24 + Rs. 25.57
= Rs. 67.81
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