Quantitative Aptitude - Arithmetic Ability Questions

What is the value of xy if x - y = 3 and x2+y2=15?

If the difference between the compound interest and the simple interest on a certain sum at the rate of 5% per annum for 2 years is Rs. 20, then the sum is

If x = 4aba+b, then what is the value of x+2ax-2a+x+2bx-2b ?

If a young son works quickly for 2 hours and prepares 16 items in a day, and his old father works slowly for 8 hours and prepares 24 items in a day, which of the following is true?

In the first 36 overs of a cricket match, the run rate was 4.3 runs/over. Calculate the required run rate in the remaining 14 overs to reach the target of 271 runs?

In a triangle PQR, the side QR is extended to S. ∠QPR = 72° and ∠PRS = 110°, then the value of ∠PQR is

tan2Asin2Ais equal to

Select the odd word/letters/number/number pair from the given alternatives.