Quantitative Aptitude - Arithmetic Ability Questions

If a + b = 10 and ab = 24, then what is the value of a3 + b3?

On decreasing the price of a fan by 40%, its sales increases by 50%. What will be the percentage increase or decrease in its revenue?

A train is moving at the speed of 72 km/hr. How many seconds will it take to cover a distance of 1400 m ?

Abhay and Chintan are riding their motorcycles. They start from the same point. Abhay rides 7 km North, then turns to his left and rides 4 km. In the meanwhile Chintan rides 6 km West, then turns North and rides 7 km, then turns to his left and rides 8 km. Where is Abhay with respect to Chintan?

A and B together can complete a task in 12 days. However, if A works alone, completes half the job and leaves and then B works alone and competes the rest of the work, it takes 25 days in all to complete the work. If B is more efficient than A, how many days would it have taken B to do the work by herself?

A certain bank offers 8% rate of interest on the 1st year and 9% on the 2nd year in a certain fixed deposit scheme. If Rs 17,658 are received after investing for 2 years in this scheme, then what was the amount (in Rs) invested?

Calculate the value of 61681x61681-31681x3168130000

At 30% discount the selling price of an article is Rs 1050. What is the selling price (in Rs) if the discount is 15%?