Talking with Your Friend#!#For Buying a New Shirt

The probability of inviting three of your friends on 5 consecutive days, exactly one friend a day and no friend is invited on more than two days is

By following a certain logic, ‘Bar is the only place where anyone can enjoy life' is coded as ‘where the place only life is enjoy can bar anyone’. How will ‘Go to college with your friend either girl or boy’ be coded using that logic? 1) With to or your friend go girl either boy college. 2) With to your or go girl friend either boy college. 3) To your with go or girl either friend college boy. 4) Your to with go or girl friend either college boy. 5) Friend college you with girl to or boy go either.

The probability that a certain person will buy a shirt is 0.2, the probability that he will buy a trouser is 0.3, and the probability that he will buy a shirt given that he buys a trouser is 0.4. Find the probability that he will buy both a shirt and a trouser. Find also the probability that he will but a trouser given that he buys a shirt.

Using a pinhole camera a student observes the image of two of his friends, standing in sunlight, wearing yellow and red shirt respectively. What will be the colours of the shirts in the image?

Your friend thinks that there is no gravitation force in space. How could you explain to your friend that there must be gravitation force in space.