Quantitative Aptitude - Arithmetic Ability Questions

AB is a chord of the circle and its center is “O”. ON is perpendicular to AB. If the length of AB=20 cm, ON-(2√11) cm, find the radius (in cm) of the circle.

If PQ and PR be the two tangents to a circle with centre O such that ∠QPR = 120° then ∠POQ is

The mean of the 5 smallest numbers from a group is 15 while the mean of all the 13 members of the group taken together is 17. What is the mean of the 8 largest numbers?

The sum of all prime numbers between 18 and 32 is:

The addition of a rational number and its reciprocal is 61/30. Calculate the number.

In an exam, the avarage marks obtained by John in English, Maths, Hindi and Drawing were 50. His average marks in Maths, Science, Social Studies and Craft were 70. If the average marks in all seven subjects is 58, his score in maths was

Determine the value of ‘r’ for which the equation 13x + 5 = rx + 18 has no solution.

If (1 - sinA)/(1 + sinA) = x, then x is