Mathematics Past Questions and Answers

A bag contains 4 black balls and \(x\) white balls. If the probability of selecting a black ball is \(\frac13\), find \(x\).

A trader bought a television for ₦85,000 and sold it for ₦102,000. Find the percentage profit.

A card is drawn from a deck. Find the probability of drawing a card less than 5.

A fair die is rolled. Find the probability of not getting a multiple of 3.

Three coins are tossed together. Find the probability of getting no head.