$3648.24 + 364.824 \div ? - 36.4824 = 3794.1696$

The least number of five digits exactly divisible by $88$ is

$A$ fraction becomes $4$ when $1$ is added to both the numerator and denominator; and it becomes $7$ when $1$ is subtracted from both the numerator and denominator. The numerator of the given fraction is

$\left[ {10 + \left\{ {4 \times \left( {\overline {\frac{2}{3} + \frac{1}{4}} \times \sqrt {\frac{{144}}{{121}}} + 23} \right) \div 12 + 5} \right\} - 3} \right] = ?$

The units digit in $3 \times 38 \times 537 \times 1256$ is

The sum of the digits of a two-digit number is $8$. If the digits are reversed,the number is increased by $54$. Find the number.