Question

There are 100 students in a class. how many students will have their roll number starting with same digit?

Answer 1

Answer:

Step-by-step explanation:

1 - 9 = not starting with same digit

10 - 19 = starting with same digit(10)

20 - 29 = starting with same digit(10)

30 - 39 = starting with same digit(10)

40 - 49 = starting with same digit(10)

50 - 59 = starting with same digit(10)

60 - 69 = starting with same digit(10)

70 - 79 = starting with same digit(10)

80 - 89 = starting with same digit(10)

90 - 99 =starting with same digit(9)

SO 89 digits

MARK ME BRAINLESt

YOU GET THE IDEA

'so till 10 - 99 it starts with same digit

Answer 2

I thing 9 students will have their roll number staring with