Quantitative Aptitude - Arithmetic Ability Questions

The value of x for which the expressions 7x + 13 and 13x - 7 become equal is _____

If a(x + y) = b(x - y) = 2ab, then the value of 2(x2 + y2)

The area of an equilateral triangle is 25√3 sq.cm. Find its side (in cm).

In the following question, select the odd number from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

If a1-2a+b1-2b+c1-2c = 12, then 11-2a+11-2b+11-2c value is

ΔPQR is right angled at Q. If cosP = 5/13, then what is the value of cosecR ?

In a mixture, ink and water are in the ratio of 8 : 5. If 24 litres of water is added to the mixture, then the new ratio becomes 8 : 11. What is the total quantity (in litres) of water in the new mixture?