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प्रश्न
Which of the following statements is always true?
विकल्प
`(x - y)/2` is a rational number between x and y.
`(x + y)/2` is a rational number between x and y.
`(x xx y)/2` is a rational number between x and y.
`(x ÷ y)/2` is a rational number between x and y.
उत्तर
`bb((x + y)/2 "is a rational number between x and y".)`
Explanation:
Here, `(x + y)/2` is a rational number.
Then, it always lies in between x and y either x < y or y < x.
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