Quantitative Aptitude - Arithmetic Ability Questions

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

Product of digits of a 2­digit number is 12. If we add 36 to the number, the new number obtained is a number formed by interchange of the digits. What is the number.

What is that least digit that must be added to the product 5786 × 5784 to make it a perfect square?

A certain sum of money becomes double of itself in 15 years at a rate of simple interest. In how many years will it become 5 times of itself at the same rate of simple interest

If 2cosAsinB = x, then the value of x is?

Select the odd number from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

30% discount is offered on an item. By applying a promo code the customer wins 20% cash back. What is the effective discount?