Quantitative Aptitude - Arithmetic Ability Questions

∆ABC is right angled at B. If m∠A = 30°, then find the value of (sinC + 1/3).

If in a triangle ABC, Sin A = Cos B then the value of Cos C is

If 2(3x + 5) > 4x -­ 5 < 3x + 2; then x can take which of the following values?

If two marbles are picked at random, what is the probability that either both are red or both are green?

The sum of two angles of a triangle is 116o and their difference is 24o . The measure of smallest angle of the triangle is

The ratio of present ages of Rambha and Sarvesh is 8:5. After 7 years the ratio of their ages will be 5:4. What is Rambha's present age?

The ten's digit of a 2­digit number is greater than the units digit by 4. If we subtract 36 from the number, the new number obtained is a number formed by interchange of the digits. Find the number.

The diagonal of a square equals the side of an equilateral triangle. If the area of the square is 12 sq cm, what is the area of the equilateral triangle?