CAT (QA) PYQs

In May, John bought the same amount of rice and the same amount of wheat as he had bought in April, but spent Rs. $150$ more due to price increase of rice and wheat by $20 \%$ and $12 \%$, respectively. If John had spent Rs. $450$ on rice in April, then how much did he spend on wheat in May?

After two successive increments, Gopal's salary became $187.5 \%$ of his initial salary. If the percenta of salary increase in the second increment was twice of that in the first increment, then the percenta; of salary increase in the first increment was

In an examination, the score of $A$ was $10\%$ less than that of $B$, the score of $B$ was $25\%$ more than that of $C$, and the score of $C$ was $20\%$ less than that of $D$. If A scored $72$, then the score of $D$ was