SOLUTION: Respected sir/mam, Please try to solve my problem as soon as possible because my exam is near.The question is-'We are writing all the multiples of 3 from 111 to 324 .How

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Question 618043: Respected sir/mam,
Please try to solve my problem as soon as possible because my exam is near.The question is-'We are writing all the multiples of 3 from 111 to 324 .How many times will we write digit 3?' The options are-
(i)18 (ii)19 (iii)21 (iv)22.
Thanking you.

Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
Here are the list of all multiples from 100 to 324:

114, 117, 120, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168, 171, 174, 177, 180, 183, 186, 189, 192, 195, 198, 201, 204, 207, 210, 213, 216, 219, 222, 225, 228, 231, 234, 237, 240, 243, 246, 249, 252, 255, 258, 261, 264, 267, 270, 273, 276, 279, 282, 285, 288, 291, 294, 297, 300, 303, 306, 309, 312, 315, 318, 321, 324

The digit 33 occurs 22 times.