Question

How many time does the digit 1 occur between 1 to 100?

Answer 1

Answer:

21

Step-by-step explanation:

1,10,11,12,13,14,15,16,17,18,19,21,31,41,51,61,71,81,91,100

Answer 2

Step-by-step explanation:

20times

1,10,11,12,13,14,15,16,17,18,1921,31,41,51,61,71,81,91 and 100