could anybody can teach me unitary method in arrow method
Answers
Answer:
In simple terms, the unitary method is used to find the value of a single unit from a given multiple. For example, the price of 40 pens is Rs. 400, then how to find the value of one pen here. It can be done using the unitary method. Also, once we have found the value of a single unit, then we can calculate the value of the required units by multiplying the single value unit. This method is majorly used for ratio and proportion concept.
What is Unitary Method?
The unitary method is a method in which you find the value of a unit and then the value of a required number of units. What can units and values be?
Suppose you go to the market to purchase 6 apples. The shopkeeper tells you that he is selling 10 apples for Rs 100. In this case, the apples are the units, and the cost of the apples is the value. While solving a problem using the unitary method, it is important to recognize the units and values.
For simplification, always write the things to be calculated on the right-hand side and things known on the left-hand side. In the above problem, we know the amount of the number of apples and the value of the apples is unknown. It should be noted that the concept of ratio and proportion is used for problems related to this method.
Example of Unitary Method
Consider another example; a car runs 150 km on 15 litres of fuel, how many kilometres will it run on 10 litres of fuel?
In the above question, try and identify units (known) and values (unknown).
Kilometre = Unknown (Right Hand Side)
No of litres of fuel = Known (Left Hand Side)
Now we will try and solve this problem.
15 litres = 150 km
1 litre = 150/15 = 10 km
10 litres = 10 x 10 = 100 km
The car will run 100 kilometres on 10 litres of fuel.