$\frac{1}{8}$ th of $\frac{6}{7}$ th of $11200 = ?$

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:

If the sum of two numbers is $22$ and the sum of their squares is $404,$ then the product of the numbers is

In a division sum,the divisor is $4$ times the quotient and twice the remainder. If $a$ and $b$ are respectively the divisor and the dividend,then

$14.28 \%$ of $49 = ?$

$1523.89 \div 19.95 + 496.28 + 249.927 = ?$