how many numbers are there from 300 to 400 in which 7 occurs only once?
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0
Hey
307,317,327,337,347,357,367,377,387,397
There are about 10 numbers
Hence from 300 to 400,
10 numbers of 7 occurs
Thanks
Jay Hind
loneaamir1431:
but there should come seven only once but in 377 it comes as twice
Answered by
3
307,317,327,337,347,357,367,387,397,371,372,373,374,375,376,378,379. therefore there are 18 numbers.
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