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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
How many different paths in the $xy$-plane are there from $(1,3)$ to $(5,6)$,
if a path proceeds one step at a time either right (R) or upward (U)?
Solution
Right steps = $5-1 = 4$Up steps = $6-3 = 3$
Total steps = $7$
Number of paths = $\binom{7}{3} = 35$
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