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Class 7th Maths NCERT Solutions – Chapter 8 – Comparing Quantities

Class 7th Maths NCERT Solutions – Chapter 8 – Comparing Quantities 

NCERT solutions for Class 7 Maths are available at our website specially designed by our experts. Our experts are working continuously to make the content easy to understand for the students and keeping it updated as per the standards.

7th Class Maths: In our daily routine, several times we compare two quantities like height, weight, quantity. Example – Height of student B = twice of the height of student A.
When we need to compare the two quantities their units must be the same.
Watch animated video lectures and learn about Comparing quantities – Class 7 Maths
Equivalent Ratio
The different ratio can be compared with each other to know whether they are equivalent or they are not equivalent. To check whether they are equivalent, first,  we write the ratio in the fraction form and then convert them in like fractions.
Example: 1:2 is equal to 2:3?
Solution: 1/2*3/3            =3/6
2/3*3/3=4/6
3/6<4/6.
1/2<2/3
The ratio 1:2 is not equivalent to the ratio 2:3
Keeping things in proportion and getting solutions.
We have studied unitary method in earlier classes. In this method, we find the value of one unit and then we find the value for the required numbers.
Example:  6 chocolates cost Rs 180. Find the cost of 2 chocolates?
Solution: 6 Chocolates=180
1 chocolate=180/6
1 chocolate=Rs 30
2 Chocolates=30*2=60
Hence, we can say that 2 chocolates cost Rs 60 only.

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