Quantitative Aptitude - Arithmetic Ability Questions

Find the odd word/letters/number from the given alternatives.

The LCM of 14, 21 and 35 is

What is the sum of the first 17 terms of an arithmetic progression if the first term is -20 and last term is 28?

The perimeter and the breadth of a rectangle are 68 cm and 10 cm respectively. Calculate the length of its diagonal (in cm).

The variance of a set of data is 121. Then the standard deviation of the data is

Which of the following words does NOT belong with the others?

What smallest number should be added to the sum of squares of 15 and 14, so that the resulting number is a perfect square?

The curved surface area and the slant height of a right circular cone are 858 cm² and 13 cm respectively. Find its diameter (in cm).