Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The number of 6 digit numbers that can be formed using the digits 1, 3, 5 with the condition that 5 occurs twice in each number, is:
Text Solution
Verified by ExpertsThe correct answer is:
D
We have to form a 6 digit number of which two digits must necessarily be 5. The digit 5 can be arranged in 
ways. Now, for the remaining four places, we have two options, viz., 1, 3 for every place. Thus the remaining places can be filled in 2 4 ways.
Hence, the required number of ways = 
= 240 ways.
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