Quantitative Aptitude - Arithmetic Ability Questions

Two numbers are in the ratio 3:5. If 6 is added to both of them, the ratio becomes 2:3. The numbers are

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

The ratio of present ages of Anil and Aakash is 4 : 5. Three years later their ages will be in ratio 7 : 8. What is the present age (in years) of Anil?

A sum of Rs. 4000 is lent out in two parts, one at 8% simple interest and the other at 10% simple interest. If the annual interest is Rs. 352. The sum lent at 8% is

A cylindrical vessel of radius 6 cm is partially filled with water. By how much will the water level rise if a sphere of radius 5 cm is completely immersed in this water? (Take π = 22/7)

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

If α and β are the roots of equation x2 – x + 1 = 0, then which equation will have roots α3 and β3?

2 ­- (cosA + sinA)2 is equal to