RD Sharma Class 8 Maths Solutions Chapter 10 - Direct and Inverse VariableShare
RD Sharma Class 8 Maths Solutions Chapter 10 - Direct and Inverse Variable
Which of the following quantities vary directly with each other?
(i) Number of articles (x) and their price (y)
(ii) Weight of articles (x) and their cost (y).
(iii) Distance x and time y, speed remaining the same.
(iv) Wages (y) and number of hours (x) of work.
(v) Speed (x) and time (y) distance covered remaining the same).
(vi) Area of a land (x) and its cost (y).
Fill in the blanks in each of the following so as to make the statement true:
(i) Two quantites are said to very _______ with each other if they increase (decrease) together in such a way that the raio of the corresoponding values remains same
(ii) x and y are said to very directly with each if for some positive number k, _______ = k.