a) 190
b) 195
c) 210
d) 220
Answer: b
Explanation: From 1- 99 digit 1 is used 20 times. And From 100 – 199, 1 is used 120 times
So, from 1 to 199, 1 is used,
20 + 120 = 140 times
We need 136. So leave 199, 198, 197 and 196
Required pages = 195
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