Quantitative Aptitude - Arithmetic Ability Questions

What is the average of first 19 odd numbers?

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

If R019 is divisible by 11, find the value of the smallest natural number R?

In a fraction when 3 is added to its numerator and denominator it becomes 4/5. And it becomes 1/2 when 2 is subtracted from both the numerator and denominator. Find the fraction.

What is the average of 90, 250, 240, 204, and 616?

The base of a prism is in the shape of an equilateral triangle. If the perimeter of the base is 18 cm and the height of the prism is 20 cm, then what is the volume (in cm3) of the prism?

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Rearrange the jumbled up letters in their natural sequence ad find the odd one out.