Question : Let $x$ be the greatest number which when divided by 955, 1027, and 1075, the remainder in each case is the same. Which of the following is NOT a factor of $x$?
Option 1: 4
Option 2: 16
Option 3: 8
Option 4: 6
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Correct Answer: 16
Solution :
Number = 955, 1027, and 1075
The greatest number means we will calculate the HCF of the given number. We will see the factors of numbers.
So, the required number ( $x$) = HCF of (1027 – 955), (1075 – 1027) and (1075 – 955)
⇒ Required number ( $x$) = HCF of 72, 48 and 120
HCF of 72, 48 and 120 = 24
⇒ Required number ( $x$) = 24
Factors of 24 = 6, 8, 4 but 16 is not the factor of 24
Hence, the correct answer is 16.
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