Both x and y are in direct proportion- then 1-x and 1-y are-

If bothx and y are directly proportional, then 1/x and 1/y are in inverse proportion. If a rise in x causes a proportionate reduction in y and vice versa, two q ...

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Byju's Answer

Standard IX

Mathematics

Invertendo and Alternendo Property

Both x and y ...

Question

Both $x a n d y$ are in direct proportion, then $\frac{1}{x} a n d \frac{1}{y}$ are:

in direct proportion

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in inverse proportion

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neither in direct nor in inverse proportion

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sometimes in direct and sometimes in inverse proportion

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Solution

The correct option is B
in inverse proportion

If both $x a n d y$ are directly proportional, then $\frac{1}{x} a n d \frac{1}{y}$ are in inverse proportion. If a rise in $x$ causes a proportionate reduction in $y$ and vice versa, two quantities $x a n d y$ are said to be in inverse proportion.

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Similar questions

Question 50

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

Question 10

Both x and y are in direct proportion, then $\frac{1}{x}$ and $\frac{1}{y}$ are
(a) In indirect proportion
(b) In inverse proportion
(c) Neither in direct in inverse proportion
(d) Sometimes in direct and sometimes in inverse proportion

Determine whether the following numbers are in proportion or not $:$

$\frac{1}{3}, \frac{1}{4}, \frac{1}{6}, \frac{1}{7}$

Question 50

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

If $(2.3)^{x}$ $= (0.23)^{y} = 1000$ then find the value of $\frac{1}{x} - \frac{1}{y}$ .

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Both xandy are in direct proportion, then 1xand1y are:

The correct option is B in inverse proportionIf bothxandy are directly proportional, then 1xand1y are in inverse proportion. If a rise in x causes a proportionate reduction in y and vice versa, two quantities xandy are said to be in inverse proportion.

Both $x a n d y$ are in direct proportion, then $\frac{1}{x} a n d \frac{1}{y}$ are:

The correct option is B
in inverse proportion

If both $x a n d y$ are directly proportional, then $\frac{1}{x} a n d \frac{1}{y}$ are in inverse proportion. If a rise in $x$ causes a proportionate reduction in $y$ and vice versa, two quantities $x a n d y$ are said to be in inverse proportion.