$26 \times 451 - ? = 5109$

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

$18.5 \%$ of $220 + 12.4 \%$ of $680 = ?$

$\frac{1}{16}$ of $8432 + 50 \%$ of $? = 4429$

How many numbers up to $200$ are divisible by both $2$ and $3$?

The difference between one-fourth of a number and one-seventh of the same number is $24$. What is the number?