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If x varies inversely as y and when x = 6, y = 8, then for x = 8 the value of y is 10. - Mathematics

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Question

If x varies inversely as y and when x = 6, y = 8, then for x = 8 the value of y is 10.

Options

  • True

  • False

MCQ
True or False
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Solution

This statement is False.

Explanation:

If x varies inversely as y, i.e. xy = k  ...(Constant)

If x = 6 and y = 8

∴ xy = 6 × 8 = 48

But if x = 8 and y = 10

∴ xy = 8 × 10 = 80

Here, 48 ≠ 80

Hence, the value of y is not 10.

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Chapter 10: Direct and Inverse Proportions - Exercise [Page 321]

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NCERT Exemplar Mathematics [English] Class 8
Chapter 10 Direct and Inverse Proportions
Exercise | Q 56. | Page 321

Video TutorialsVIEW ALL [1]

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