Question

Which of the following will have 6 at unit place?
. 19²
.11²
.24²
.13²

Answer 1

$\large\tt{\blue{Question:}}$

Which of the following will have 6 at unit place:

Options :- $\large\tt 19^{2} , 11^{2} , 24^{2} , 13^{2}$

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24²

Step by Step Explanation:-

$\large\tt 19²$ , unit digits square = 81

$\large\tt 11²$ , unit digits square = 1

$\large\tt 24²$ , unit digits square= 16

$\large\tt 13²$ , unit digits square = 9

Answer 2

Step-by-step explanation:

Before we solve this problem, let us know a table,

1² = 1

2² = 4

3² =9

4² = 16

5² = 25

6² = 36

7² = 49

8² = 64

9² = 81

0² = 0

We have to find the number which ends with 6 at units place.

From the above table, we can say that the number which ends with 4 or 6 also ends with 6 in its square.

Here only 24 ends with 4, i.e., its square will have 6 in its units place.

Final answer: 24²

24² will have 6 at units place

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