GMAT Math Practice Test #1

Answer D - A coin has two faces Head(H) and Tale(T). The possible outcome when two coins are tossed is HH, TT, HT and TH. Out of 4 possible outcomes only 1 is favourable for getting both Heads. Probability is the ratio of favorable events for success and total possible events. Hence Probability P = 1/4

Key takeaway: Probability is the chance of the occurrence of an event . It is the ratio of favourable events for success and total possible events. It is an important mathematical concept that we use in our day-to-day life. Practice some simple problems to understand the concept.