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Question
Both x and y are in direct proportion, then `1/x` and `1/y` are ______.
Options
in indirect proportion.
in inverse proportion.
neither in direct nor in inverse proportion.
sometimes in direct and sometimes in inverse proportion.
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Solution
Both x and y are in direct proportion, then `1/x` and `1/y` are in inverse proportion.
Explanation:
If both x and y are in directly proportion, then `1/x` and `1/y` are in inverse proportion.
Hence, in inverse proportion.
Notes
Two quantities x and y are said to be in inverse proportion, if an increase in x cause a proportional decrease in y and vice-versa.
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