how many numbers with distinct digits are possible product of whose di | Examsbook

1999

Q: How many numbers with distinct digits are possible product of whose digits is 18?

1
12
2
8
3
6
4
4

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Answer : 2. "8"
Explanation :
Answer: B) 8 Explanation: Two digit numbers: The two digits can be 2 and 9: Two possibilities 29 and 92.Three-digit numbers: The three digits can be 1, 2 and 9 => 3! Or 6 possibilities.We cannot have three digits as (3, 3, 2) as the digits have to be distinct.We cannot have numbers with 4 digits or more without repeating the digits.So, there are totally 8 numbers.

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