Quantitative Aptitude - Arithmetic Ability Questions

In a test, Charan secured 54 marks that was also equivalent to obtaining 72% marks. How many marks was the test out of?

The average of 21 numbers is 12. The average of the first 11 numbers is 9 and the average of the last 11 numbers is 15. What is the value of the middle number?

A money lender lends Rs. 400 for 3 years to a person and lends Rs. 500 for 4 years to the other person at the same rate of simple interest. If altogether he receives Rs. 160 as interest, what is the rate of interest per annum ?

Gautam travels 160 kms at 32 kmph and returns at 40 kmph. Then average speed is

What is the average of all numbers between 8 and 74 which are divisible by 7?

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

The difference between cost price and selling price is Rs 221. If profit percentage is 17%, then what is the selling price (in Rs)?

Ticket for an adult is Rs 1200 and a child is Rs 800 respectively. One child goes free with two adults. If a group has 25 adults and 5 children what is the discount the group gets?