Quantitative Aptitude - Arithmetic Ability Questions

Ramesh sold a phone at a loss of 5%. Had he sold it for Rs. 200 more, he would gave gained 15%. To gain 25%, he should sell it for

The Simplified form of (b3x2a4z3)*(b4x3a3z2)/(a2b4z3) is

The ratio of present ages of R and S is 6:7. Before 12 years the ratio of their ages was 9:11. What is R's present age (in years)?

If (x + y):(x - y) = 11:1, find value of (5x + 3y)/(x - 2y).

In ΔABC, D and E are points on side AB and AC respectively. DE is parallel to BC. If lengths of AD, DB and DE are 8 cm, 6 cm and 7.2 cm respectively, find length of BC?

a% of b + b% of a = ______

If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

If 1 saree is offered free on purchase of 3 sarees, what is the effective discount on each saree?