Engineering Maths - Permutation And Combinations

2. The number of different permutations of the word BANANA is

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3. There are four bus lines between A and B; and three bus lines between Band C.

The number of way a person round trip by bus from A to C by way of B will be

  • Option : A
  • Explanation :

    There are four ways to go from A to B and three ways to go from B to C, Hence there are 4 x 3 = 12 ways to go from A to C by way of B

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