What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits ?

What percentage of numbers from 1 to 70 has 1 or 9 in the unit digits ? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

14%

20%

21%

0 1

Best Answer Explained in Below-:

1 থেকে 70 পর্যন্ত মোট সংখ্যা 70 টি। এর মধ্যে যে সংখ্যাগুলো একক স্থানে 1 অথবা 9 আছে সেগুলো হলো : 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69 মোট 14 টি নির্ণেয় সংখ্যা হার = ( 14/70 × 100) % = 20 %

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