Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd word pair 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?

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

The shadow of a tower when the angle of elevation of the sun is 45°, is found to be 10 m longer than when it was 60° . The height of the tower is

Two equal circles of radius 3 cm each and distance between their centres is 10 cm. The length of one of their transverse common tangent is

The total surface area of a hemisphere is 462 sq.cm. Find its diameter (in cm).

The amount of Rs. 10,000 after 2 years, compounded annually with the rate of interest being 10% per annum during the first year and 12% per annum during the second year, would be (in rupees)