The area of a rectangle is 120 sq cm and its perimeter 140 cm. What is the length of its diagonal?

If x - 2y = 2 and 3x + y = 20, then the value of (x,y) is

If 9x - 6(3 - x) = 12, then the value of x is

The diagonals are congruent in a _____.

If 1 dupatta is offered free on purchase of 4 dupattas priced Rs 1300 each what is the effective discount on each dupatta?

Which of the following quadratic equations has real roots?

There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 36000 after 2 years at the same rate?

If (1 + cosA)/(1 - cosA) = x, then x is