Quantitative Aptitude - Arithmetic Ability Questions

Deepinder lent Rs 8200 to Jairaj for 16 years and Rs 4900 to Karna for 15 years on simple interest at the same rate of interest and received Rs 19446.5 in all from both of them as interest. The rate of interest per annum is:

ABCD is an isosceles trapezium such that AD||BC, AB = 5 cm, AD = 8 cm and BC = 14 cm. What is the area (in cm2) of trapezium?

The age of Dr. Pandey is four times the age of his son. After 10 years , the age of Dr. Pandey will be twice the age of his son . The present age of Dr. Pandey's son is

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

The smallest number that must be subtracted from 2800 so that the obtained number is a perfect square is

What is the value of {sin (90 – x) cos [π – (x – y)]} + {cos (90 – x) sin [π – (y – x)]}?

Which of the following equations has the sum of its roots as 11?