Question

How much 5 comes between How 1 to 1000

Answer 1

Answer:

Only one 5 comes between them.

Answer 2

Lets look at 1 to 100

5, 15, 25 .....95 => 10 (only looking at units digit)

50, 51 ........59 => 10 (only looking at tens digit)

From 1 to 499 and then 600 - 1000 it is similar to the above. So it comes to: 20*9

Now for 500 to 599 we have 5xx => 100 (only looking at hundreds digit)

55x => 10 (only looking at tens)

505, 515 ... 595 => 10 (only looking at units)

Add them all up = 300