Unitary Method


 
 
Concept Explanation
 

Unitary Method

Unitary Method:

The method in which first we find the value of one unit and then the value of required numbers of units is known as Unitary Method.

Illustration: Suppose the cost of 6 cans is Rs.210. Find the cost of 4 cans?

Solution: Using the unitary method,

we first find the cast of 1 can.

The ;cost; of; 6 ;cans = 210 ;Rs.

The; cost ;of ;1 ;can =frac{210}{6};Rs

The; cost ;of ;4 ;can =frac{210}{6}times4;Rs

                                    =frac{70}{2}times4;Rs

                                    =70times2;Rs

                                   =140;Rs

 

It is Rs. small frac{210}{6} or Rs. 35. From this, we find the price of 4 cans as Rs. 35*4 or 140.

 

Sample Questions
(More Questions for each concept available in Login)
Question : 1

A map is given with a scale of 2cm = 5000km. What is the actual distance between the two cities in kms, if the distance between them on the map is 3.5cm?

Right Option : C
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Explanation
Question : 2

A radio set costs Rs. 122.75. Then the cost of 5 such radio sets is___________

Right Option : A
View Explanation
Explanation
Question : 3

7 chains costs Rs 714 . Find the cost of 83 chains.

Right Option : B
View Explanation
Explanation
 
 


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