Question Paper
Class / Subject: Class 8 (CBSE) · Mathematics
Chapter: Chapter 10 — Chapter 10: Proportional Reasoning–2
Time Allowed: 15 minutes
Max Marks: 6
1. In inverse proportion, when one quantity doubles, the other: [1]
(A) halves
(B) doubles
(C) stays the same
(D) triples
2. If 4 workers complete a task in 6 days, fewer workers would generally take: [1]
(A) more days
(B) fewer days
(C) the same number of days
(D) no time at all
3. In inverse proportion, the product of the two quantities: [1]
(A) remains constant
(B) always increases
(C) always decreases
(D) becomes zero
4. Speed and time for a fixed distance are: [1]
(A) inversely proportional
(B) directly proportional
(C) unrelated
(D) always equal
5. A car travels a fixed distance in 4 hours at 60km/h. At 80km/h, the time taken is: [1]
(A) 3 hours
(B) 5 hours
(C) 4.5 hours
(D) 2 hours
6. In an inverse proportion problem, we find the unknown by: [1]
(A) keeping the product of quantities constant
(B) keeping the ratio of quantities constant
(C) always adding the quantities
(D) always subtracting the quantities