Quantitative Aptitude - Arithmetic Ability Questions

What will be the average of all the prime numbers before 19?

Mr. Akbar sold a bus for Rs.20,400 with a loss of 15%. At what price should the price should the bus be sold to get a profit of 15%?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If the diameter of the two circles is 6 units and 10 units and a centre distance of 8 units. Calculate the number of common tangents that can be drawn to both the circle.

If (x + y)/z = 2, then what is the value of [y/(y – z)] + [x/(x – z)]?

If 2x - 6 ≤ x - 3 and 1+3x < 4x + 4, then x can take which of the following values?

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

Find a two digit number which is exactly three times the product of its digits?