Quantitative Aptitude - Arithmetic Ability Questions

x and y are two numbers such that their mean proportion is 8 and third proportion is 512. What is the value of x and y?

What is the value of sin (B – C) cos (A – D) + sin (A – B) cos (C – D) + sin (C – A) cos (B – D)?

If the population of a town increases by 25% in the first year and increases by 36% in the second year, then what is the average rate (in percentage)of increase in the population?

Select the odd word/letters/number/number pair from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

Ramu can row 9 kmph in still water. It takes him twice as long to row up as to row down. Find the rate of stream.

The diameter of a circle is 28 cm find its area?

If the sum of the measures of all the interior angles of polygon is 2340°. What is the number of sides of the polygon?