What percent of numbers from 1 to 70 have squares that end in the digit $1$ ?
20 %
25 %
15 %
16 %

Question

What percent of numbers from 1 to 70 have squares that end in the digit 1 -20 -25 -15 -16 -

Toppr Admin · Accepted Answer

The numbers from 1 to 70 that have their squares ending in digit 1 are 1- 9- 11- 19- 21- 29- 31- 39- 41- 49- 51- 59- 61- 69 i-e- 14 in numbers-x2234- Required percentage-xA0-1470-xD7-100-20-

What percent of numbers from 1 to 70 have squares that end in the digit 1 ?20 %25 %15 %16 %

The numbers from 1 to 70 that have their squares ending in digit 1 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69 i.e. 14 in numbers∴ Required percentage =1470×100=20%

What percent of numbers from 1 to 70 have squares that end in the digit $1$ ?
20 %
25 %
15 %
16 %

The numbers from 1 to 70 that have their squares ending in digit 1 are 1, 9, 11, 19, 21, 29, 31, 39, 41, 49, 51, 59, 61, 69 i.e. 14 in numbers
$∴$ Required percentage $= \frac{14}{70} \times 100 = 20 %$