There are 3 green, 4 orange and 5 white colour bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green green or a white bulb?
Which of the following is greater than 1 ?
A train with a length of 150m long, takes 30 seconds to cross a 500m long bridge. How much time will the take to cross a 370m long platform?
In a party 15 people shake their hands with each other. How many times did the handshakes take place?