Quantitative Aptitude - Arithmetic Ability Questions

Neeraj's earning was decreased by 60% and after that subsequently increased by 60%. Find the final loss % on his earnings?

In the given figure, PQR is a right angled triangle at Q. If PQ = 35 cm and QS = 28 cm, then what is the value (in cm) of SR?

There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 10000 after 3 years at the same rate?

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

If √20 + √125 = 15.65, then what is the value of √45 + √5?

How many numbers divisible by 125 can be written by using all the digits 2,3,8,7,5 exactly once?

cos(A+B) + cos(A-B) is equal to

ABC is a right angled triangle with angle A = 90 deg. Then the value of cos2A+cos2B+cos2C is