Combinatories

1:

Common Data for next 2 questions

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

The number of ways a person can travel by bus from A to C by way of B will be

A.

10

B.

12

C.

14

D.

24

 

Answer : B

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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Option: A

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