There are five different roads connecting Agra and Delhi. In how many ways a person can complete his journey if he goes from Agra to Delhi by one road and returns by another road ?
(a) 9
(b) 10
(c) 15
(d) 20
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4
No. of roads by which he can go = 5
No. of roads by which he can return=4
(since it is given he cannot come back from the same road)
total no. of possibilities = 4×5
= 20
Ans: (d) 20
Hope it helps
No. of roads by which he can return=4
(since it is given he cannot come back from the same road)
total no. of possibilities = 4×5
= 20
Ans: (d) 20
Hope it helps
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0
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