The average marks of 45 students is shown as 65. It includes a wrong entry of 84 marks instead of 48 marks. The correct average is:
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The measures of the four angles of a quadilateral are in the ratio 3:4:5:6. What is the measure of the biggest angle?
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?