QJEEM20Ma8971: JEE Main 2020 Mathematics - Class 11 JEEM20Ma8971 Solution: If the number of five digit numbers with distinct digits and 2…

Except 1 and 2 there are eight options on first place and only one option at fourth place possible which is digit '2'.

Remaining three places can be filled by any three digits out of 1, 3, 4, 5, 6, 7, 8 and 9.

$$\therefore$$ No. of five digits numbers = 8 $$\times$$ 8 $$\times$$ 7 $$\times$$ 1 $$\times$$ 6 = 336 $$\times$$ 8

Also 336k = 336 $$\times$$ 8

$$\Rightarrow$$ k = 8