This is something very interesting......
Do You Know that
Letters 'a', 'b', 'c' & 'd' do not appear anywhere in the spellings of 1 to
99
(Letter 'd' comes for the first time in Hundred)
99
(Letter 'd' comes for the first time in Hundred)
Letters 'a', 'b' & 'c' do not appear anywhere in the spellings of 1 to 999
(Letter 'a' comes for the first time in Thousand)
(Letter 'a' comes for the first time in Thousand)
Letters 'b' & 'c' do not appear anywhere in the spellings of 1 to
999,999,999
(Letter 'b' comes for the first time in Billion)
999,999,999
(Letter 'b' comes for the first time in Billion)
And
Letter 'c' does not appear anywhere in the spellings of entire English
Counting
Counting