Proportional Reasoning
More workers finish a job sooner, while more packets of the same price cost proportionally more. Chapter 11, Direct and Inverse Proportions, of the NCERT Mathematics textbook for Class 8 studies the two ways quantities can move together. You will distinguish direct proportion from inverse proportion, apply the unitary method to new situations, and solve problems on time and work, speed and distance, and sharing. Careful tables of paired values help you decide which kind of proportion each story follows.
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