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Gyaan Maths
CBSE · Class 6-12
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CBSE Maths · Class 8

Chapter 10: Proportional Reasoning-2

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Date: ______________
Marks: ____ / 4

Inverse variation, compound proportion, time-and-work.

Questions

  1. x,yx, y inversely: x=4,y=6x=4, y=6; x=8,y=?x=8, y=?
  2. A: 12 days, B: 15 days. Together?
  3. 6 men in 10 days. 8 men in?
  4. A: 8 days, B: 12. Together, how many days for half work?

Extra Practice (Optional)

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Answer Key (For Teachers)

  1. Answer: 33
    Working: xy=24xy=24.
  2. Answer: 20/320/3 days
    Working: 60/960/9.
  3. Answer: 7.57.5 days
    Working: 60/860/8.
  4. Answer: 12/512/5 days
    Working: Half of 24/524/5.
Gyaan Maths · CBSE Class 8 · Chapter 10
Gyaan Maths — CBSE Class 6-12, built for board-toppers.
v1.1 · Sept 2026