Question

30N 38. A driver wishes to buy petrol and have his car washed. He finds that the wash costs Rs.250 when he buys 19 litres at Rs.110 each, but that if he buys 20 litres, the car Wash is free. Thus the marginal cost of the 20thlitre to him is a) Rs.140 b) Rs.110 c) Rs.250 d) - Rs. 140 E A​

Answer 1

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Explanation:

30N 38. A driver wishes to buy petrol and have his car washed. He finds that the wash costs Rs.250 when he buys 19 litres at Rs.110 each, but that if he buys 20 litres, the car Wash is free. Thus the marginal cost of the 20thlitre to him is a) Rs.140 b) Rs.110 c) Rs.250 d) - Rs. 140 E A