a) 4% increase
b) 4% decrease
c) 8% increase
d) 8% decrease
Answer: b
Explanation: Let the initial expenditure on the commodity be Rs. 100.
Now, the price decreases by 20%,
Current Price = (100 – 20% of 100) = Rs. 80.
Same time due to decrements in price 20% consumption has been increased. So,
Current expenses on commodity = (80 + 20% of 80)= Rs. 96.
Here, the initial expenditure was Rs. 100 which became 96 at the end, it means there is 4% decrements in the expenditure of the commodity.
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