what is direct and inverse proportions i cannot understand ncerts defination - Maths - Direct and Inverse Proportions

Question

what is direct and inverse proportions i cannot understand
ncerts defination

Gopal Mohanty · Accepted Answer

Hi Prakhar!
Two quantities, x and y, are said to be in
direct proportion, if they increase (decrease) together in such a
manner that the ratio of their corresponding values remains
constant That is, x/y = k, where k is a
positive number
Two quantities, x and y, are said to be in
inverse proportion, if an increase in x causes a
proportional decrease in y (and vice-versa) in such a manner
that the product of their corresponding values remains constant
That is, xy = k, where k is a positive number
Let us consider the case of the number of employees and time
taken to finish a work More the number of employees, less will be
the time taken to finish the work Therefore, this is a case of
inverse proportion
Let us consider another example, Price of wheat weight of
wheat that can be brought at a fixed rate More the weight of wheat,
more will be the cost Therefore, this is a case of direct
proportion
Hope! You got the answers
Cheers!!!