Question

# 8. How many times does the number 3 occur in unit's place for numbers ranging from 1 to 100? RRB NTPC (Phase I) 2016 (1) 20 (2) 11 (3) 10 (4) 19

Solution 8. (3).. Required number of 3 occur in unit's
place for number Ranging from 1 to 100
= 10 (3, 13, 23, 33, 43, 53, 63, 73, 83, 93)

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