If the price of apples goes down by $10 \%,$ find the percentage of increase that a family should effect in its consumption so as not to increase expenditure on this account.

If $A$ is $20 \%$ more than $360,$ then what is the value of $A$?

$A$ sum of $Rs$ $7,930$ is divided into $3$ parts and given on loan at $5 \%$ simple interest to $A, B$ and $C$ for $2, 3$ and $4$ years respectively. If the amounts (principal + interest) of all three are equal after their respective periods of loan,then the amount $A$ received as a loan is:

In a fraction,the numerator is increased by $25 \%$ and the denominator is diminished by $10 \%$. The new fraction obtained is $\frac{5}{9}$. The original fraction is:

$6 \frac{2}{3} \%$ expressed as a fraction in its lowest term is:

In an examination,$70 \%$ of the candidates passed in English,$80 \%$ passed in Mathematics,and $10 \%$ failed in both subjects. If $144$ candidates passed in both,the total number of candidates was: