Quantitative Aptitude - Arithmetic Ability Questions

Ramesh sold a phone at a loss of 5%. Had he sold it for Rs. 200 more, he would gave gained 15%. To gain 25%, he should sell it for

By what fraction selling price (S.P.) must be multiplied to get the cost price (C.P.) if the loss is 20% ?

20 boys do one fourth of work in 25 days. How many more boys will be required to complete the remaining work in 50 days?

Find the volume (in cub.cm) of a sphere of diameter 42 cm

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

-7.5, 15, -30, 60, ? , 240

If a(a + b + c) = 45, b(a + b + c) = 75 and c(a + b + c) = 105, then what is the value of (a2 + b2 + c2 )?

If x, y, z are the three factors of a3 -7a - 6, then value of x+y+z will be

The ratio of the curved surface area and total surface area of a right circular cylinder is 2 : 5. If the total surface area is 3080 cm2, then what is the volume (in cm3) of the cylinder?