Following are the car parking charges near a railway station upto
4 hours ₹60
8 hours ₹100
12 hours ₹140
24 hours ₹180
Check if the parking charges are in direct proportion to the parking time
Solution:
If two quantities are related in such a way that an increase or decrease in one quantity leads to a corresponding proportional increase or decrease in the other, then such a variation is called direct proportion.
Let's find the parking charge for 1 hour in all the four cases shown below:
We have:
60/4 = 15/1 = ₹15
100/8 = 25/2 = ₹12.5
140/12 = 35/3 = ₹11.67
180/24 = 15/2 = ₹7.50
We see that the 1 hour charge in all the four cases shown below is not equal.
Thus, the parking charges are not in direct proportion.
☛ Check: NCERT Solutions for Class 8 Maths Chapter 13
Video Solution:
Following are the car parking charges near a railway station up to: 4 hours ₹60; 8 hours ₹100; 12 hours ₹140; 24 hours ₹180; Check if the parking charges are in direct proportion to the parking time
NCERT Solutions Class 8 Maths Chapter 13 Exercise 13.1 Question 1
Summary:
Following are the car parking charges near a railway station up to: 4 hours ₹60; 8 hours ₹100; 12 hours ₹140; 24 hours ₹180; We see that the 1 hour charge in all the four cases shown below is not equal. Thus, the parking charges are not in direct proportion.
☛ Related Questions:
- A photograph of a bacteria is enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlarged length?
- In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 cm high. If the length of the actual ship is 28 m, how long is the model ship?
- Suppose 2 kg of sugar contains 9 × 106 crystals. How many sugar crystals are there in (1) 5 kg of sugar? (2) 1.2 kg of sugar?
- Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?
visual curriculum