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Permutations and combinations

 
Ishita Jain
(@ishitajain)
Trusted Member

Q. 15

1629278781-IMG_20210818_145309.jpg
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Topic starter Posted : 18/08/2021 2:56 pm
Rahul Singh
(@rahul)
Admin

Here , number of vertical steps (v) = 3
Number of horizontal steps (h) = 5
Then in this case total number of ways is given by h+vCh = h+vCv = 8C3 = 6 x 7 x ( 8/6 ) = 7 x 8 = 56.
Hence, 56 distinct routes can a car reach point B from point A.

 

I hope this helps!

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Posted : 07/10/2021 8:08 pm
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