Which of the following numbers will have the square root rational?1. 4

1.	Which of the following numbers will have the square root rational?1. 462322. 342253. 144484. 46233
Answer» Correct Answer - Option 2 : 34225 Given: We have to find the number from the given options which have the square root rational. Concept: Unit digit and option trial method Calculation: We know that, 1² = 1 2² = 4 3² = 9 4² = 16 5² = 25 6² = 36 7² = 49 8² = 64 9² = 81 10² = 100 11² = 121 12² = 144 ... and so on. From the above, we can conclude that the unit digit of the square of a rational number will be one of 0, 1, 4, 5, 6, and 9 Among the given options only 34225 has the unit digit which satisfies the condition. ∴ Our desire number is 34225 which have the square root rational.

Which of the following numbers will have the square root rational?1. 462322. 342253. 144484. 46233

Answer» Correct Answer - Option 2 : 34225

Given:

We have to find the number from the given options which have the square root rational.

Concept:

Unit digit and option trial method

Calculation:

We know that,

1² = 1

2² = 4

3² = 9

4² = 16

5² = 25

6² = 36

7² = 49

8² = 64

9² = 81

10² = 100

11² = 121

12² = 144 ...

and so on.

From the above, we can conclude that the unit digit of the square of a rational number will be one of 0, 1, 4, 5, 6, and 9

Among the given options only 34225 has the unit digit which satisfies the condition.

∴ Our desire number is 34225 which have the square root rational.

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