1.

Consider the digits in set `S=(1,2,3,4)`. All four-digit number formed using digits in `S` are arranged ascending order. Which of the following is/are correct?A. The number 3412 is at 177 thB. the number 3423 is at 183th positionC. the number 3412 is at 178th positionD. the number at 110th position 2342

Answer» Correct Answer - B::C::D
`S=(1,2,3,4)`
`1---=64`
`2----=64`
`3,1---=16`
`3,2---=16` ltbr. `3,3----=16`
`3,4,1,1=1`
`3 4 1 2`
So, number 3412 is at `178^(th)` position. Similarly other options may be checked.


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