Quantitative Aptitude - Arithmetic Ability Questions

If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 28090, and Rs 29775.4 respectively, what is the rate of interest?

When a number is increased by 26, it becomes 113% of itself. What is the number?

If P + 1P+2 = 1, then the value of P+23+1P+23-3 ?

If cos 2π/3c = x, then the value of x is

If 4x2 - 12x + k is a perfect square, then the value of k is

­ A wooden bowl is in shape of a hollow hemisphere of internal radius 8 cm and thickness 1 cm. Find the total surface area of the bowl?

Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 18, while the average of the largest three was 22. What is the range of the data?

Convert decimal number 101 to binary.