Choose the word which is antonymous to the word given in capitals.
INCISIVE
Incisive describes thinking or speech that is sharp, clear and cuts straight to the point. Its opposite is language or thought that is scattered, vague and spread out, which is what diffuse means.
So the antonym of INCISIVE is diffuse.
If the price of a commodity increases by 25%, by what percentage should the consumption be reduced to keep the expenditure the same?