SSC Government Jobs Exams Numerical Ability Probability

A family has two children. find the probability that both the children are girls given that at least
one of them is a girl?

A.) 1/4 B.) 2/3
C.) 1/3 D.) 1/4

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SSC Other Question
Ten cards numbered 1 to 10 are placed in a box, mixed up thoroughly and then one card is drawn

randomly. If it is known that the number on the drawn card is more than 3, what is the probability

that it is an even number?

A.) 2/7 B.) 6/7
C.) 7/2 D.) 4/7 |x^2 + 4| = ? FIND ABSOLUTE