Q24 of 106 Page 310

Fill in the blanks to make the statements true:

Two quantities are said to vary ……………. with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains constant.

Two quantities are said to vary inversely with each other if an increase in one causes a decrease in the other in such a manner that the product of their corresponding values remains constant.


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22

Fill in the blanks to make the statements true:

x and y are said to vary directly with each other if for some positive number k, ……… = k.

 23

Fill in the blanks to make the statements true:

Two quantities are said to vary ……………. With each other if they increase (decrease) together in such a manner that the ratio of their corresponding values remains constant.

 25

Fill in the blanks to make the statements true:

If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is …………. hours.

26

Fill in the blanks to make the statements true:

If x varies inversely as y. then