Quantitative Aptitude - Arithmetic Ability Questions

Pramod can paint a wall red in 12 hours while Brajen can whitewash the wall completely in 16 hrs. If Pramod and Brajen work alternately for an hour each starting when the wall has just cement on it till when it is completely painted red, how many hours will it take to paint the entire wall red?

20 pens and 46 pencils were purchased for Rs. 235. If the average price of a pencil is Rs. 2.50 then calculate the average price (in Rs.) of a pen.

If a + b = 10 and ab = 24, then what is the value of a3 + b3?

A Rs 100 shirt is offered at 10% discount and a Rs 300 pair of trousers at 20% discount. If Pritam bought 1 shirt and 3 pairs of trousers, what is the effective discount (in %) he got?

If x/y = 4/9, then what is the value of (7x2 – 19xy + 11y2)/y2 ?

The side of an equilateral triangle is 14 cm. Find its area (in sq.cm).

In the following question, select the odd letter group from the given alternatives.

G is the centroid of ΔABC. If AG = BC, then measure of ∠BGC is