The distance (x km) of a journey by bus and price y of the ticket. This statement is direct variation or inverse variation.
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Answer
(i) The number of x men hired to construct a wall and the time y taken to finish the job.
⇒ If the number of men hired is more than times required for construction wall shall be less and vice-versa.
∴ It is inverse variation.
(ii) The length xof journey by bus and price y of the ticket.
If the distance of journey is more then cost of ticket will be more and vice-versa.
∴ It is direct variation.
(iii) Journey (x km) undertaken by a car and the petrol (y liters) consumed by it.
If the distance of journey is more then petrol required will also more and vice-versa.
∴ It is direct variation.
Answer:
(i) The number of x men hired to construct a wall and the time y taken to finish the job.
⇒ If the number of men hired is more than times required for construction wall shall be less and vice-versa.
∴ It is inverse variation.
(ii) The length xof journey by bus and price y of the ticket.
If the distance of journey is more then cost of ticket will be more and vice-versa.
∴ It is direct variation.
(iii) Journey (x km) undertaken by a car and the petrol (y liters) consumed by it.
If the distance of journey is more then petrol required will also more and vice-versa.
∴ It is direct variation.