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- Boats and Streams
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- Height and Distance
- Area
- Profit and Loss
- Problems on Ages
- Decimal Fraction
- Average
- Pipes and Cistern
- Permutation and Combination
- Problems on H.C.F and L.C.M
- Compound Interest
- Probability
- Chain Rule
- Stocks and Shares
- Banker’s Discount
- Time and Distance
- Simple Interest
- Problems on Trains
- Time and Work
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Videos on Chain Rule
Aptitude Made Easy – Problems on Chain rule – Part 1, Basics and Methods, Shortcuts, Tricks
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Aptitude Made Easy – Problems on Chain rule – Part 2, Basics and Methods, Shortcuts, Tricks
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- 1) Direct Proportion: Any two quantities are said to be directly proportional, if on the increase of one quantity, the other quantity increases and vice-versa.
- Example: Cost is directly proportional to number of objectsCost ∝ Number of objects Number of objects increases (↑) Cost (↑)
- Example: Work done is directly proportional to number of working menWork done ∝ Number of working men Number of men increase (↑) Work done (↑)
- Indirect Proportion: Any two quantities are said to be indirectly proportional, if on the increase of one quantity, the other quantity decreases and vice-versa.
- Example: If speed of car is increases, then the time required to cover the distance decreases. Speed of car (↑) Time required decreases (↓)
- Example: Time taken to finish work increases, if number of men decrease. Time (↑) Number of men (↓)