Q.6. Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the other?
Q.5. A coin is tossed 3 times and the outcomes are recorded. How many possible outcomes are there?
Q.4. How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?
Q.3. How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?
Q.2. How many 3-digit even numbers can be formed from the digits 1, 2, 3, 4, 5, 6 if the digits can be repeated?
Q.1. How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that
(ii) repetition of the digits is not allowed?
Q.1. How many 3-digit numbers can be formed from the digits 1, 2, 3, 4 and 5 assuming that
(i) repetition of the digits is allowed?