Quantitative Aptitude - Arithmetic Ability Questions

If [a + (1/a)]2 – 2[a – (1/a)] = 12, then which of the following is a value of 'a'?

Working together P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?

Vishal is 20 years younger to Arya. Twelve years hence Arya's age will be 1.25 times that of Vishal. Aryais now ......... years old.

The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is

What is the area (in sq cm) of a rectangle of perimeter 48 cm and breadth 10 cm?

The sum of the length and breadth of a rectangle is 6 cm. A square is constructed such that one of its sides is equal to a diagonal of the rectangle. If the ratio of areas of the square and rectangle is 5 : 2, the area of the square in cm2 is

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

Select the odd letters from the given alternatives.