What is directly and inversely proportional
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If 2 quantities are directly proportional, it means that if 1 quantity increases so does the second one.
If 2 quantities are indirectly proportional, it means that if 1 quantity increases the other decreases.
Ex: If we buy more pens their cost also becomes more. Hence cost and numbers of pens are directly proportional.
Ex: If we have more people working together, the amount of time required to complete the work decreases. Hence no. of people and time are indirectly proportional.
If 2 quantities are indirectly proportional, it means that if 1 quantity increases the other decreases.
Ex: If we buy more pens their cost also becomes more. Hence cost and numbers of pens are directly proportional.
Ex: If we have more people working together, the amount of time required to complete the work decreases. Hence no. of people and time are indirectly proportional.
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