Three valves when opened individually, can drain the water from certain tank in 3, 4 and 5 minutes respectively, What is the greatest part of the tank that can be drained in one minute by opening just two of valves.
Determine square root of 1600?
5, 15, 30, 50 What will then next number?
Which of the following fraction has the smallest value?
87
109
2320
10131022
How much more is -3-(-10) than -10-(-3)?
The product of three consecutive odd numbers is 3. What is the largest of integer?