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ICSE Class 8 Answered

How many digits are there in the squares of the following number 12,32 ,80,125 ,425, 7258
Asked by ravirawat305 | 30 Jan, 2020, 11:32: AM
answered-by-expert Expert Answer
Number of digits in the square of n digit number is 2n-1
No. of digits in the square of 12 is 2 x 2 - 1 = 3
No. of digits in the square of 32 is 2 x 2 - 1 = 3
No. of digits in the square of 80 is 2 x 2 - 1 = 3
No. of digits in the square of 125 is 2 x 3 - 1 = 5
No. of digits in the square of 425 is 2 x 3 - 1 = 5
No. of digits in the square of 7258 is 2 x 4 - 1 = 7
Answered by Renu Varma | 30 Jan, 2020, 02:32: PM

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