CBSE Class 8 Maths Proportional Reasoning 1 (Class 8 NCERT New) Quiz 3

1. What is the HCF of 72 and 96?

A 12 B 18 C 24 D 36

2. Kesang made 6 glasses of lemonade using 10 spoons of sugar. If she needs to make 18 more glasses with the same sweetness, how many spoons of sugar should she use?

A 18 spoons B 20 spoons C 30 spoons D 36 spoons

3. In the lemonade problem, the number of glasses increases from 6 to 18. What is the factor of change in the first term of the ratio?

A 2 B 3 C 6 D 12

4. Nitin used 3 bags of cement for a 60 ft wall, while Hari used 2 bags for a 40 ft wall. Is Nitin correct to think Hari’s wall will be weaker because he used less cement?

A Yes, because using fewer bags always makes the wall weaker B No, because the ratios of length to bags of cement are proportional for both walls

5. A car travels 90 km in 150 minutes. If it continues at the same speed, what distance will it cover in 4 hours?

A 120 km B 144 km C 150 km D 160 km

6. Which of the following correctly formulates the proportion to find the distance covered in 4 hours, keeping time units consistent?

A 150 : 90 :: 4 : ? B 150 : 90 :: 240 : ? C 90 : 150 :: 4 : ? D 4 : ? :: 150 : 90

7. To find the distance covered in 240 minutes at the same speed, which method is appropriate?

A Convert 4 hours to 240 minutes and use the proportion 150 : 90 :: 240 : x, then solve by cross-multiplication. B Keep 4 hours as hours and use 150 : 90 :: 4 : x. C Subtract the times and multiply by 90 to get the distance. D Estimate by averaging 150 minutes and 240 minutes to scale the distance.

8. A small farmer in Himachal Pradesh sells each 200 g packet of tea for ₹200. A large estate in Meghalaya sells each 1 kg packet of tea for ₹800. After converting weights to the same units, are the weight-to-price ratios in both places proportional?

A Yes, they are proportional. B No, they are not proportional. C Cannot be determined from the given information. D They are proportional only when measured per packet.

9. Based on the tea prices, which tea is more expensive per kilogram?

A Himachal Pradesh tea B Meghalaya tea C Both are the same price per kilogram D It depends on packet size, so it cannot be compared

10. The Earth travels approximately 940 million kilometres around the Sun in a year. How many kilometres will it travel in a week?

A About 9.4 million km B About 18 million km C About 52 million km D About 0.94 million km