Quantitative Aptitude - Arithmetic Ability Questions

The difference between the compound interest (compounding annually) and simple interest on a sum at the rate of 12% per annum for 2 years is Rs 360. What is the sum (in Rs)?

What will be the value of r2+p2+s2-rp-ps-rs when r = 4, p = 2, s = 8?

If Girish's salary is 4/9 times of Harishankar's and Shirish's salary is 5/6 times of Harishankar's, what is the ratio of Girish's salary to Shirish's.

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

In a class of 55 students there are 34 girls. The average weight of these girls is 51 Kg and average weight of the full class is 55.2 kgs. What is the average weight of the boys of the class?

A taxi going at 90 km/hr takes 35 minutes to travel a certain distance. By how much should it increase its speed (in km/hr) to travel the same distance in 21 minutes?

A person driving at the speed of 40 kmph reaches office 1 minute early while he reaches 3 minutes late if driving at 36 kmph. What is the distance in km that she is covering?

∆DEF is right angled at E. If m∠F = 45°, then find the value of (cosecD - 1/√3).