# How many numbers will be there between 300 and 500

How many numbers will be there between 300 and 500, where 4 comes only one time?

(a) 99

(b) 100

(c) 110

(d) 120

**Answer: (a) 99**

**Solution:-**

1st of all 300 to 399,

3n4 & 34n in which n is filled by 18……….(1)

now 400 to 499

4n4 & 44n in which n is filled by 19,

so out of 100 (400-499) 19 numbers have one more than 4.

=100-19= 81…….(2)

Numbers =81+18=99

Hence, the correct answer is option (a) 99.