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Chapter 3 Class 8 - Proportional Reasoning-2 (Ganita Prakash II) | 5 questions | about 4 minutes

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Question 1 of 5
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Question 1 of 5
Assertion (A): The ratios 6 : 3 and 4 : 2 are proportional.
Reason (R): Their cross-products are equal: 6 × 2 = 3 × 4.
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Question 2 of 5
Assertion (A): RF 1 : 50 means 1 cm on a plan represents 50 m on the ground.
Reason (R): The two quantities in an RF must first be expressed in the same unit.
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Question 3 of 5
Assertion (A): Food for 80 students for 15 days represents 1200 student-days.
Reason (R): Adding students makes the same food last for more days.
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Question 4 of 5
Assertion (A): For a fixed journey, doubling speed doubles the travel time.
Reason (R): For a fixed journey, speed × time equals the fixed distance.
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Question 5 of 5
Assertion (A): Pumps taking 3 hours and 2 hours separately fill 5/6 of a tank together in one hour.
Reason (R): Their time together is 5/6 hour.
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