Quantitative Aptitude - Arithmetic Ability Questions

Reflection of the point (4,­6) in the origin is

What is the value of √[(1 - sinA)/(1 + sinA)]?

Length and breadth of a rectangle are increased by 40% and 70% respectively. What will be the percentage increase in the area of rectangle?

30% discount is offered on an item. By applying a promo code the customer wins 10% cash back. What is the effective discount?

The compound interest on Rs. 24000 at 10% per annum for 11⁄2 years, interest being compounded semi­annually is

A product was sold foe Rs. 4,500 at a profit of 12.5%. What was the amount of profit?

Vishal is 20 years younger to Arya. Twelve years hence Arya's age will be 1.25 times that of Vishal. Aryais now ......... years old.

If the ratio of marked price and selling price is 11 : 10, then what is the discount percentage?