Question 31
If the quantities x and y vary directly with each other, then___of their corresponding values remains constant.
If two quantities x and y vary directly with each other, then ratio of their corresponding values remains constant.
Question 32
If two quantities p and q vary inversely with each other, then___of their corresponding values remains constant.
Question 13
If two quantities x and y vary directly with each other, then (a) xy remains constant (b) x-y remains constant (c) x+y remains constant (d) x×y remains constant
Question 24
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.