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

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.**

**Permutation method is used to multiply higher level calculations.**

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## 2 Comments

Bt how can solved

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