1.

Find the square root of 17161.1. 1312. 1293. 1334. 1395. None of these.

Answer» Correct Answer - Option 1 : 131

Concept used:-

Trick to find square root of a number.

Method and Calculation:-

 • Find the unit digit of square root by looking at unit digit of given number.

For √17161, unit digit must be 9 or 1

 • Find other two digits by looking at number formed by first 3 digit.

169 < 171 < 196 (169 and 196 are squares of 13 and 14, so remaining part of square root will be 13.

 • Find the square root from the narrowed down options.

√17161 = 131 or 139. To find this, we multiply 13 × 14, which is equal to 182 and is more than 171. Hence the smaller of two will be the square root

Clearly, √17161 = 131



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