Quantitative Aptitude - Arithmetic Ability Questions

The sum of two numbers is 25 and sum of their square is 313. Calculate the numbers.

A sum of Rs 800 becomes Rs 1000 in 2 years at simple interest. What is the per annum rate of interest (in percent)?

Incentre of Δ ABC is I. ∠ABC = 90° and ∠ACB = 70°. ∠AIC is

Of the three numbers, the average of the first number and the second number is 37 more than the average of second number and third number. What is the difference between the first and the third number?

In a mixture of 45 litres, the ratio of liquid A and liquid B is 7 : 2. If 11 litres of liquid B is added to the mixture, then what will be the ratio of liquid A and liquid B in the new mixture?

Which of the following numbers is not a prime number?

An angle is four times its complementary angle. What is the measure of the angle?

Find the odd numbers/letters/numbers from the given alternatives.