When the integers from 1 to 999 are written on a paper, the number of zeros used in writing it is:
a) 192
b) 189
c) 200
d) 203
e) 216

1 Answer

Answer :

From 1 to 10 : 1 zero
From 11-100 : 10 zeros (100 has 2 zeros)
From 101 – 900 : 8×20 = 160 zeros
From 901-999 : we have 18 zeros
Total = 1+10+160+18 = 189 zeros
Answer: b)

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