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Question
The following tables gives the quantity of rice and its cost.
Quantity of rice (in kg) 4 6 8 10 Cost of rice in ₹ 200 300 400 500
Plot the graph of quantity of rice and its cost and find the cost for 14 kg of rice.
The following tables gives the quantity of rice and its cost.
| Quantity of rice (in kg) | 4 | 6 | 8 | 10 |
| Cost of rice in ₹ | 200 | 300 | 400 | 500 |
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Solution
The correct option is A ₹700
Take a suitable scale on both the axes
Here, we take on the x axis 1 cm = 2 kg,
on the y axis 1 cm = ₹100.
● Mark number of kg of rice along the x -axis.
● Mark the cost of rice along the y-axis.
● Plot the points (4,200) (6,300) (8,400) (10,500).
● Join the points.
To find the cost of 14 kg of rice.
Mark 14 on the x-axis, follow the line parallel to y-axis
through 14 till we meet the drawn line at P. From P we take a horizontal line to meet the y-axis. This meeting point of y-axis is the required answer.
Thus, the cost of 14 kg of rice is ₹700.
Take a suitable scale on both the axes
Here, we take on the x axis 1 cm = 2 kg,
on the y axis 1 cm = ₹100.
● Mark number of kg of rice along the x -axis.
● Mark the cost of rice along the y-axis.
● Plot the points (4,200) (6,300) (8,400) (10,500).
● Join the points.
To find the cost of 14 kg of rice.
Mark 14 on the x-axis, follow the line parallel to y-axis
through 14 till we meet the drawn line at P. From P we take a horizontal line to meet the y-axis. This meeting point of y-axis is the required answer.
Thus, the cost of 14 kg of rice is ₹700.
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