I. x2 + 14x – 1247 = 0
II. B can be reached from A in 3 ways; C can be reached from B in 2 ways; D can be reached from C in 5 ways and E can be reached from D is 2 ways.If the total number of ways to reach E from A is y, find the value of y
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Answer:
Travelling from A to C through B:
To travel from A to B, there are 3 ways.
To travel from B to C, there are 2 ways.
So, total ways of travelling from A to C through B=3×2=6 ways.
It is give that there is 1 way to go from A to C directly.
∴ Total ways a person can travel from A to C=6+1=7 ways.
5×2= 10
10- 7 = 3
The value of y is 3
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