Quantitative Aptitude - Arithmetic Ability Questions

B is thrice as efficient as A and C is 0.75 times as efficient as A. What is the ratio of number of days taken by A, B and C when they work individually?

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?

Select the odd word from the given alternatives.

What is the value of 4600+540+1280+250+36 ?

What is the value of sinAtanA/(1 - cosA)?

What is the area (in sq cm) of a circle whose circumference is 22 cm?

The length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively. Find its area (in cm2).