Quantitative Aptitude - Arithmetic Ability Questions

The sum of digits of a two-digit number is 9. When the digits are reversed, the number decreases by 45. Find the changed number.

A, B and C can work together for Rs. 550/- A and B together are to do 7/11 of the work. The share of C should be?

In Δ ABC , if ∠BAC = 90° and AB = AC , then ∠ABC is

If curved surface area of a cylinder is 1320 sq cm and height is 10 cm, find its radius?

A sum of Rs 20000 becomes Rs 32000 in 12 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 2 years?

An angle is greater than its complementary angle by 30°. Find the measure of the angle?

What are the co­-ordinates of the mid point of the segment joining points C(0,­-3) and D(8,5)?

If A : B = 3 : 4 and B : C = 6 : 5 then A : (A + C) is