Quantitative Aptitude - Arithmetic Ability Questions

A vendor buys apples at the rate of 21 for Rs 7 and sells at the rate of 5 for Rs 2. What will be the result?

When a number is increased by 216, it becomes 140% of itself. What is the number?

If the product of two numbers is 4941 and their LCM is 81, then their HCF is :

Select the odd letters from the given alternatives.

A car travelling at an average speed of 72 km/hr takes 9 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 8 minutes?

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

Value of (cos 53° - sin 37°) is

Complete the analogy 3 : 11 :: 7 : ___