Which of the following numbers would have digit
6 at unit place.
1 192 (ii) 242 (m) 262
(iv) 36² (1) 34²
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2
Answer:
one is having in units place
one is having in ten s place
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2
Question:
Which of the following numbers would have digit 6 at unit place?
(i) 19^2
(ii) 24^2
(ii) 26^2
(iv) 36^2
(v) 34^2
Answer:
(1) 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) 26^2 Unit's place digit = 6
∴26^2 would have 6 as unit's place.
(iv) 36^2: Unit place digit = 6
∴ 36^2 would end in 6.
(V) 34^2: Since, the unit place digit is 4
.∴34^2 would have unit place digit as 6.
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 numbers are squares of 24, 26, 36, 34.
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