If 4x - 5(2x - 1) > 2x + 3 > 2 - 3x; then x can take which of the following values?

Product of digits of a 2-digit number is 72. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.

Two cars travel from city A to city B at a speed of 36 and 54 km/hr respectively. If one car takes 3.5 hours lesser time than the other car for the journey, then the distance between City A and City B is

If x - y = -9 and xy = -20, then find x2 + y2 ?

At what rate of compound interest per annum will a sum of Rs 10000 become Rs 12321 in 2 years?

Coefficient of x in (x + 9)(8 - 5x) is

At 15% discount the selling price of a microwave oven is Rs 34000, what is the selling price if the discount is 37.5%?

The circumference of a circle is 88 cm, find its area?