Calculate this mentally and improve your thinking power.
Katy wrote all the numbers from 200 to 300 on a piece of paper.
How many times did she write the digit 2?
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Calculate this mentally and improve your thinking power.
Katy wrote all the numbers from 200 to 300 on a piece of paper.
How many times did she write the digit 2?
Share it with your friends and family on WhatsApp & Facebook.
There are 101 numbers from 200 to 300, inclusive. The last one, 300, has no ‘2’. The other 100 numbers have form 2MN, with M, N being any digit. There are 100 ‘2’ in the first position {2MN}, 10 in the second position {22N}, and 10 in the last position {2M2}. Thus, the total is 120 ‘2’ digits will be written.
Of course, if she wrote it all in binary, none of the digits will be ‘2’.
121 times.
119 from reading and 0 from logic any one from this two options