Simplify $\frac{(0.9743)^{3}-(0.0257)^{3}}{(0.9743)^{2}+(0.9743)(0.0257)+(0.0257)^{2}}$

If $16 \%$ of $40 \%$ of a number is $8,$ the number is

$2 \frac{3}{5} + 3 \frac{4}{9} + 4 \frac{3}{15} = ?$

In a division sum,the divisor is $12$ times the quotient and $5$ times the remainder. If the remainder is $48$,then the dividend is:

The price of commodity $X$ increases by $40 \text{ paise}$ every year,while the price of commodity $Y$ increases by $15 \text{ paise}$ every year. If in $2001$,the price of commodity $X$ was $Rs. 4.20$ and that of $Y$ was $Rs. 6.30$,in which year will commodity $X$ cost $40 \text{ paise}$ more than commodity $Y$?

$90 \times \frac{6}{18} + 73 = ?$