Math, asked by anishapattanaik506, 1 year ago

What percentage of nunber from 1 to 80 have squars that end the digit 9?

Answers

Answered by prakhar157
0
no having square that end with digit 9 = 2
no having square in digits 1 to 80 are 8
Now
%=
 \frac{2}{8 }  \times 100

=25
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