Simple interest on a sum for six months at 5% per annum is Rs 65.5.What is the value (in Rs) of sum ?

The average of 6 consecutive integers is 15/2. What is the average of last three integers?

S, T and U started a business by investing Rs 4200, Rs 6300 and Rs 8400 respectively. S left the business after 3 months, T left 6 months after the business had started and U remained in the business till one year. At the end of one year the total profit is Rs 6000. What is the U’s share (in Rs) in the profit?

The sum of three numbers is 162. If the ratio of the first number to the second number is 5 : 7 and that of the second number to the third number is 5 :3, then what is the second number?

90% of X = 40% of Y and Y = a% of X. What is the value of a?

The area of a circular cricket ground is 24.64 hectares. Find the cost of making rope boundary at the rate of Rs. 5.40 per metre.

The height of the equilateral triangle is 9 cm. What is the radius (in cm) of the circle circumscribing the three vertices?

What is the value of the expression a3 - 5 + 2816a, when a = 2?