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Question

There are 3 places in a city namely A, B and C. There are 4 routes a1, a2, a3 and a4 from A to B & there are 2 different routes, b1 and b2 from B to C. Find the number of ways he
can go from place A to C via B.

A
6
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B
7
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C
8
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D
9
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Solution

The correct option is C 8
(i) In the first way, he can go from A to B in 4 routes and
(ii) In the second way, he can go from B to C in 2 different routes.
Therefore, the total number of ways in which he can travel is 8 (4×2) routes.

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