Quantitative Aptitude - Arithmetic Ability Questions

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

When Gopal walks from A to B and returns from B to A on cycle, then it takes him 46 minutes. By walking both ways, it takes him 75 minutes. If he rides cycle both ways then what will be the total time (in minutes)?

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

What is the compound interest on Rs. 48,000 for 2 years at 20% p.a., if interest is compounded annually?

If 40 is 0.05% of x, then what is the value of x?

What is the value of cos (90 – B) sin (C – A) + sin (90 + A) cos (B + C) – sin (90 – C) cos (A + B)?

What is the simplified value of 18 - 12 ?