Which of the following numbers would have the digit 6 in the unit place?
( a ) 192
( b ) 242
( c) 252
( d) 132
Answers
Question:
Which of the following numbers would have digit 6 at
unit place?
(1) 19^2 (ii) 24^2 (iii 25^2
(iv) 13^2
Answer:
(i) 19^2: Unit's place digit = 9
∴ 19^2 would not have unit's digit as 6.
(ii) 24^2: Unit's place digit = 4
∴ 24^2 would have unit's digit as 6.
(iii) 25^2 Unit's place digit = 5
∴ 25^2 would not have 6 as unit's place.
(iv) 13^2: Unit place digit = 9
∴ 13^2 would not have 6 as unit's place.
We know that when a square number ends in 6, the number whose square will have either 4 or 6 in unit’s place.
So the required number is squares of 24.
Step-by-step explanation:
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Answer:
Step-by-step explanation:
As the property of square numbers say If a number ends with 6, the unit digit of its square number will be 4 or 6.
The answer is 24 because it ends with 4.
Guys, If you did not understand why I chose 24, You can read the property I mentioned above.
thank you!