Quantitative Aptitude - Arithmetic Ability Questions

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

For an amount, simple interest at the rate of interest of 12% per annum for 6 years is Rs 25920. What will be the compound interest (in Rs) on same amount at the rate of interest of 8% per annum compounding annually for 2 years?

Find the square root of 1485961

At what rate of compound interest per annum will a sum of Rs 10000 become Rs 12321 in 2 years?

If x2+ y2+ z2= xy + yz + zx, then what is the value of (7x + 3y – 5z)/5x?

If tan θ + cot θ = x, then what is the value of tan4θ + cot4θ?

An aeroplane flying horizontally at a height of 3 Km. above the ground is observed at a certain point on earth to subtend an angle of 60°. After 15 sec flight, its angle of elevation is changed to 30°. The speed of the aeroplane (taking √3 = 1.732) is

If xy = -18 and x2+ y2= 85, then find the value of (x + y).