Quantitative Aptitude - Arithmetic Ability Questions

If 1 shirt is offered free on purchase of 3 shirts priced Rs 500 each, then what is the effective discount on each shirt?

If a boat goes a certain distance at 30 km/h and comes back the same distance at 20 km/hr, what is the average speed (in km/hr) for the total journey?

Find the radius of the circle if the area of its sector is 30.8 sq cm whose corresponding central angle is 72°?

If a + b + c = 27, then what is the value of (a – 7)3 + (b – 9)3 + (c – 11)3 – 3(a – 7)(b – 9)(c – 11)?

If the product of two numbers is 3026 and their LCM is 89, then their HCF is :

The area and the length of one of the diagonals of a rhombus is 84 cm² and 7 cm respectively. Find the length of its other diagonal (in cm).

S and T can finish a work in 50 days. They worked together for 20 days and then left. How much of the work is left?

A shopkeeper cheats to the extent of 11% while buying and selling fruits, by using tampered weights. His total gain in percentage is