A) 11
B) 18
C) 20
D) 21
Correct Answer: C
Solution :
Number of 3's in 1 to 10, 11 to 20, 21 to 29, 41 to 50, 51 to 60, 61 to 70, 71 to 80, 81 to 90, 91 to 100 are 9 and number of 3's in 30 to 40 are 11.You need to login to perform this action.
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