Quantitative Aptitude - Arithmetic Ability Questions

If C = 1200 and D = 1500, then D is how much percent more than C?

The difference between simple interest on a certain sum at the rate of 6% per annum for 5 years and 6 years is 25.8. What is the sum (in Rs)?

P bought an article for Rs. 1600 and sold it at a profit of 10%. What would have been the increase in the profit percent if it was sold for Rs. 1840?

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

The ten's digit of a 2-digit number is greater than the units digit by 7. If we subtract 63 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

In a class test, a student scored 22 marks out of 25 marks. The students marks in % is :

If Sec θ = 25/24 , then what is the value of Sin θ?

If P = 7 + 4√3 and PQ = 1, then what is the value of 1/P2 + 1/Q2?