हिंदी

If x and y are in direct proportion, then (x – 1) and (y – 1) are also in direct proportion. - Mathematics

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प्रश्न

If x and y are in direct proportion, then (x – 1) and (y – 1) are also in direct proportion.

विकल्प

  • True

  • False

MCQ
सत्य या असत्य
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उत्तर

This statement is False.

Explanation:

If x and y are in direct proportion, then,

`x/y = k`  ...(Constant)

E.g. Let x = 4 and y = 6

∴ `x/y = 4/6 = 2/3`

Now, x – 1 = 4 – 1 = 3 and y – 1 = 6 – 1 = 5

∴ `(x - 1)/(y - 1) = 3/5`  ...[Not in direct proportion]

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अध्याय 10: Direct and Inverse Proportions - Exercise [पृष्ठ ३२१]

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एनसीईआरटी एक्झांप्लर Mathematics [English] Class 8
अध्याय 10 Direct and Inverse Proportions
Exercise | Q 50. | पृष्ठ ३२१

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