Quantitative Aptitude - Arithmetic Ability Questions

The centroid of a triangle is the point where

Δ DEF is right angled at E. If m∠F = 45°, then what is the value of 2 Sin F x Cot F?

Puneet lent out Rs 30000 in two parts, one at 5% and the other at 9% interest. The yearly average interest comes out to be 6%. What are the amounts (inRs) that are lent at 5% and 9% respectively?

What is the sum of the first 11 terms of an arithmetic progression if the 4th term is 11 and the 7th term is -4?

Two circles of equal radii intersect each other such that one circle will pass through the centre of the other circle. The distance between the centre of two circles is equal to 6 cm. Find the length (in cm) of common chord.

The sum of two fractions is 3/4. One of them is 2/3. What is the other fraction?

What is the slope of the line perpendicular to the line passing through the points (­-4,5) and (3,­-2)?

A factory buys 7 machines. 2 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 56000, Rs 45000 and Rs 30000 respectively. Calculate the average cost of these machines.