CBSE NCERT Solutions for Class 8 Chapter 8

NCERT Solutions involve detailed solutions of all NCERT textbook questions. Chapter-wise, thorough solutions to the questions of the NCERT textbooks are provided with the aim of helping students compare their answers. NCERT Solutions are prepared by experts to provide accurate and easy solutions for all questions covered in class 8.

CBSE NCERT Solutions for Class 8 Maths Chapter 8:

Question-1:

Find the ratio of the following.
(a) Speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.
(b) 5 m to 10 km
(c) 50 paise to Rs 5

Solution:

a) Required ratio =15/30 = 1/2 = 1: 2
b) Required ratio = 5m/10 km
= 5 m/ (10 *1000 m)
= 5 / (10 1000 )
=(5/10) * (1/1000)
=(1/2) * (1/1000)
= (1/ 2
1000)
= 1/2000
= 1: 2000
c) Required ratio = 50 paise/Rs 5
= 50paise/500 paise
= 1/10 = 1:10

Question-2:

A football team won 10 matches out of the total number of matches they played. If their win percentage was 40, then how many matches did they play in all?

Solution:

Let us assume total number of matches = y
Then % of matches win= (10/y) * 100
Now , it is given % of matches win=40
So,
40=(10/y)* 100
y=(10/40) *100 =25

Question-3:

If Chameli had Rs 600 left after spending 75% of her money, how much did she have in the beginning?

Solution:

Money left after spending 75% = 100-75 = 25%
Let us assume total money in the beginning = y
Then, 25% of y =600
(25/100) * y =600
y = (100/25) *600
y = 2400
Chameli had Rs. 2,400 in the beginning.