How many times the digit 6 appear while writing integers from 400 to 900? Explained

Q. How many times does the digit 6 appear while writing integers from 400 to 900 ?

A) 201

B) 150

C) 170

D) 200

Ans. D) 200

The digit 6 appear 200 times while writing integers from 400 to 900.

Explanation: 

This question can be solved by using permutations method.

Also read: How many times does the digit 8 appear from 1 to 100?

Permutation method is used to multiply higher level calculations.

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