Question 17

Write the correct answer from the given four options.

A perfect square can never have the following digit in its one's place.

a) 1
b) 8
c) 0
d) 6

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Solution

We know that, a number ending with digits 2, 3, 7 or 8 can never be a perfect square.
Clearly, a perfect square can never have the digit 8 in its one's place.

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Similar questions

Write the correct answer from the given four options.

A number ending in $9$ will have the unit's place of its square as

a) $3$
b) $9$
c) $1$
d) $6$

Question 17

Out of the given four options, only one is correct. Write the correct answer.

The instrument in the geometry box having a shape of a triangle is called a

(a) protractor (b) compass (c) divider (d) set square

Question 6

Write the correct answer from the given four options.

Which of the following cannot be a perfect square?

a) 841
b) 529
c) 198
d) All of these

Question 13

Write the correct answer from the given four options.

Which of the following numbers is a perfect cube?

a) 243
b) 216
c) 392
d) 8640

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