Question

How many times nine come from 1-120

Answer 1

if we consider between 0-99 ,,

Digit 9 comes- 10 times at unit place
(for ex 09,19,29,39,49,,....99)

and 10Times at Tens place
(For ex 90,91,92,93.......99)

So total 20Times in (0-99)

Now between 100-120
it appears only twice (109,119)

So total count becomes =20+2=22