Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Dehradun express going from Dehradun to Bandra stops at 5 intermediate stations. 10 passengers enter the train during the journey with 10 different tickets of ‘k’ classes. If number of different sets of tickets they have is 45 C 35 then k equals .......
Text Solution
Verified by ExpertsThe correct answer is:
3
Ans. 3
Sol. No. of different tickets of same class = 6 C 2 = 15
S 1 S 2 S 3 S 4 S 5 B
∴ No. of different tickets of k classes = 15 k
∴ 15k C 10 = 45 C 35 ⇒ k = 3
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