what is unitary method
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Answer:
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value. I
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The method in which the value of a unit quantity is first calculated to get the value of any quantity is called the unitary method. In unitary method we have two types of variations :
1. Direct variation:
Condition: Increase in one quantity causes increase in the other and decrease in one quantity causes decrease in the other .
Examples:
- With more money , more articles can be bought.
- With less number of men , less work can be done in same time .
- With a greater speed a larger distance can be covered in the same time.
2. Inverse variation:
Condition: Increase in one quantity causes decrease in the other and decrease in one quantity causes increase in the other.
Examples:
- With a greater speed, less time will be taken to cover the same distance .
- With less number of men , more days are required for the same work .
●The formula of the unitary method is to find the value of a single unit and then multiply the value of a single unit to the number of units to get the necessary value.