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If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain?
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If there are 50 stations on a railway line,how many different kinds of...
Solution:
To find the number of different kinds of single first-class tickets that can be printed, we need to find the number of possible pairs of stations that a passenger can travel between.
We can use the formula for the number of combinations of n items taken r at a time, which is:
nCr = n!/r!(n-r)!
Here, n = 50 (the number of stations), and r = 2 (the number of stations a passenger can travel between).
So, the number of possible pairs of stations is:
50C2 = 50!/2!(50-2)! = 50x49/2 = 1225
However, we need to consider that each pair of stations can be traveled in two directions (e.g., from station 1 to station 2 and from station 2 to station 1), so we need to multiply the above result by 2:
1225x2 = 2450
Therefore, the correct answer is option b) 2450.
To find the number of different kinds of single first-class tickets that can be printed, we need to find the number of possible pairs of stations that a passenger can travel between.
We can use the formula for the number of combinations of n items taken r at a time, which is:
nCr = n!/r!(n-r)!
Here, n = 50 (the number of stations), and r = 2 (the number of stations a passenger can travel between).
So, the number of possible pairs of stations is:
50C2 = 50!/2!(50-2)! = 50x49/2 = 1225
However, we need to consider that each pair of stations can be traveled in two directions (e.g., from station 1 to station 2 and from station 2 to station 1), so we need to multiply the above result by 2:
1225x2 = 2450
Therefore, the correct answer is option b) 2450.
Community Answer
If there are 50 stations on a railway line,how many different kinds of...
2500
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If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain?
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If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain?.
If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain? for CA Foundation 2024 is part of CA Foundation preparation. The Question and answers have been prepared according to the CA Foundation exam syllabus. Information about If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain? covers all topics & solutions for CA Foundation 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If there are 50 stations on a railway line,how many different kinds of single first class tickets may be printed to enable a passenger to travel from one station to another? a)2500 b)2450 c)2400 Correct answer is option b plz explain?.
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