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  • Without repeating any digits, how many two-digit numbers can be formed using 2,4,5,6,7,9?Option: 1 49

Without repeating any digits, how many two-digit numbers can be formed using 2,4,5,6,7,9?

Option: 1

49


Option: 2

36


Option: 3

30


Option: 4

25


Answers (1)

best_answer

We must choose two numbers from the available six in order to form a two-digit number. 

Consider two dashes. To fill up the first dash, we have 6 options and to fill up the second dash, we have 5 options.

Therefore, the number of two-digit numbers formed using the above numbers is \mathrm{ 6\times 5=30\ ways.}

Posted by

Divya Prakash Singh

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