SSC - Mathematics Mock Tests

A bag contains 3 red and 5 blue balls. Two balls are drawn at random. The probability that both are blue is

If x + y = 10 and x − y = 4, then the value of xy is:

The mean of 100 observations was calculated as 40. It was later discovered that an observation 53 was wrongly recorded as 33. The correct mean is

If P(A) = 1/3, P(B) = 1/4 and P(A ∩ B) = 1/12, then P(A ∪ B) is:

If two parallel lines are cut by a transversal, then each pair of corresponding angles is:

Factorise: x² + 5x + 6

If f(x) = x³ - 6x² + 12x - 8, then f'(x) at x = 2 equals:

If the sum of the zeros of a quadratic polynomial is 5/3 and their product is 1, then the quadratic polynomial is: