If $200 \%$ of a number is $90,$ then what is the $80 \%$ of that number?

$0.15 \%$ of $33 \frac{1}{3} \%$ of $₹ 10000$ is

Dinesh's monthly income is four times Suresh's monthly income. Suresh's monthly income is $20\%$ more than Jyoti's monthly income. Jyoti's monthly income is $₹ 22,000$. What is Dinesh's monthly income?

If $37 \frac{1}{2} \%$ of a number is $45,$ then $87 \frac{1}{2} \%$ of the number will be:

Two litres of water evaporate from $10$ litres of a solution containing $10 \%$ salt. The percentage of salt in the remaining solution is

Raman scored $456$ marks in an examination and Seeta got $54 \%$ marks in the same examination,which is $24$ marks less than Raman. If the minimum passing marks in the examination is $34 \%$,then how many more marks did Raman score than the minimum passing marks?