Question

How many times 3 occur in ten's and unit's place in the numbers from 100 to 1000? (a) 180 (b) 190 (c) 181(d) 171 which is correct answer​

Answer 1

Answer:

171 is the correct answer.

Step-by-step explanation:

Number of ways X can be filled = 9 (1–9 numbers excluding 0 as it is a 3 digit number). So, number of times 3 occurs in ten's and unit's place from 100 to 1000 = 90+81 = 171.

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