The average age of A, B and C is 40 years, Then the sum of the ages of A and C is 85 years. Find the age of B.
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?