Letters a, b, c, and d do not appear anywhere in the spellings of 1 to 99.
Letter ‘d’ comes for the first time in Hundred.
Letters ‘a’, ‘b’, and ‘c’ do not appear any where in the spellings of 1 to 999.
Letter ‘a’ comes for the first time in Thousand.
Letters ‘b’ and ‘c’ do not appear anywhere in the spellings of 1 to 999,999,999
Letter ‘b’ comes for the first time in Billion.
Letter ‘c’ does not appear anywhere in the spellings of entire English counting.
- Collected by : Harika. M. X- B
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