If $A$'s salary is $40\%$ less than that of $B$,then how much percent is $B$'s salary more than that of $A$?

An army lost $10 \%$ of its men in war,$10 \%$ of the remaining due to diseases,and $10 \%$ of the rest were hurt. Thus,the strength was reduced to $729000$ active men. Find the original strength.

Out of his total income,Mr. Kapur spends $20 \%$ on house rent and $70 \%$ of the rest on household expenses. If he saves $₹ 1,800$,what is his total income?

The weight of a container alone is $25 \%$ of the container filled with a certain fluid. When some fluid is removed,the weight of the container and remaining fluid is $60 \%$ of the original total weight. What fractional part of the liquid has been removed?

$A$ student has to secure $15\%$ marks to pass the examination. If he gets $80$ marks and fails by $70$ marks,find the maximum marks set for the examination.

Express $8 \frac{1}{3} \%$ as a fraction.