Quantitative Aptitude - Arithmetic Ability Questions

From a point, 40 m apart from the foot of a tower, the angle of elevation of its top is 60°. The height of the tower is

The ratio of the weights of two spheres is 8 : 27 and the ratio of weights per 1 cc of materials of two is 8 : 1 . The ratio of the radii of the spheres is

If P : Q : R = 2 : 3 : 5, then what is the value of (P + Q) : (Q + R) : (R + P)?

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

An engineering student has to secure 36% marks to pass. He gets 53 and fails by 37 marks. Find the maximum marks.

A trader had 1200 kgs of rice. He sold a part of it at 5% profit and the rest at 11% profit, so that he made a total profit of 7%. How much (in kg) wheat did he sell at 5% profit?

A does 80% of a work in 20 days. He then calls in B and they together finish the remaining work in 4 days. How long B alone would take to do the whole work?

Rs. 490 is divided among A, B and C such that A's share is half that of B's and thrice that of C's. What is C's share?