book Maths Puzzle Numerical Ability

What is the correct way to find the sum of 1+4+7+10+13......100

Read Solution (Total 0)

book Other Question

what is the absolute value of x>10? A 15 foot ladder is leaning against a wall. It's base is moving at a constant rate of 2 ft per second away from the wall. What is the rate of change of the area formed by the lad