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

Anurag Mishra Professor Asked on 8th March 2016 in Reasoning Questions.
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  • 1 Answer(s)

    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. 

    Anurag Mishra Professor Answered on 9th March 2016.
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