8
Q:
A) increase 12% | B) decrease 12% |
C) increase 16% | D) decrease 16% |
Answer: B) decrease 12%
Explanation:
Explanation:
Given the price of a commodity is decreased by p = 20%
And its consumption is increased by q = 10%
Now, required increase or decrease in the expenditure on the commodity can be
p + q + pq/100 = -20 + 10 - 200/100 = -10 - 2 = -12%.
Hence, decrease in the expenditure = 12%