Abdul prepared 42 litres of medicine and filled it in bottles of 280 ml each. Find how many bottle would be required?

Solve: 12–[26–{2+5×(6–3)}]

Find the difference between compound interest and simple interest on 5000 for 2 years at 8% p.a payable annually.

Sanjay and Jacob start running in opposite directions from the same point at speeds of 7m/s and 5m/s. After 42 minutes, how far would they be from each other?

6 carpenters make 96 windows in 16 days. If 8 carpenters work for 4 days how many windows will they make?

Simplify : $$ {9\over 13} ÷{18\over 26}÷{90\over 52}$$

One angle of a triangle is 55°. If the other two angles are in the ratio 9:16, find the angles?

The sum of the digits of a 2 digit number is 9. When 27 is added to the number, the digits get interchanged. Find the number.