Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Ayush Sharma 5 years ago
- 4 answers
Posted by Ayush Sharma 5 years ago
- 3 answers
Gaurav Seth 5 years ago
Microscope is an instrument which has good resolving power and magnification. It is used for studying very small sized objects like cells. The very first microscope was built by Zacharias Janssen in 1590. It was first modified by Galileo and then by Robert Hooke.
Posted by Brea Cora Steffan 5 years ago
- 2 answers
Gaurav Seth 5 years ago
Land: All of us live on land. We need land for agriculture. We need land for making houses, factories, roads, railways, etc. We cannot imagine of a life without land. Land is considered an important resource.
Water: Human beings use water for a variety of purposes; like drinking, bathing and washing. Water is also used in production of various things for our use. Moreover, water is used in agriculture, industries and in electricity generation.
Posted by Priyanka Longesha 5 years ago
- 4 answers
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Yogita Ingle 5 years ago
Hydra reproduces by the method of budding. A small outgrowth called bud is formed on one side of its body by repetitive mitotic division. This bud gradually grows into a full hydra, developing its mouth and tentacles. The new Hydra detaches itself from its parent and start living as a separate organism.
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Yogita Ingle 5 years ago
The process of fusion of a sperm with an ovum is called fertilisation.
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Yogita Ingle 5 years ago
The development of fertilised egg takes place in the uterus (womb)
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Yogita Ingle 5 years ago
The testes produce sperms continuously from the stage of puberty onwards. Sperms from the testis pass through the sperm duct, known as vas deferens.
Posted by Chandani Vishwakarma 5 years ago
- 1 answers
Brea Cora Steffan 5 years ago
Posted by Brea Cora Steffan 5 years ago
- 2 answers
Diksha Laniya🐥 5 years ago
Posted by Christina Shaju 5 years ago
- 0 answers
Posted by Diksha Laniya🐥 5 years ago
- 5 answers
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Posted by Anshu Æ 5 years ago
- 4 answers
Diksha Laniya🐥 5 years ago
Diksha Laniya🐥 5 years ago
Posted by Diksha Laniya🐥 5 years ago
- 3 answers
Diksha Laniya🐥 5 years ago
Diksha Laniya🐥 5 years ago
Gaurav Seth 5 years ago
Ex 8.1 Class 8 Maths 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 ₹ 5
Solution:
(a) Speed of cycle : Speed of Scooter = 15 km per hour : 30 km per hour
= 1530 = 12
Hence, the ratio = 1 : 2
(b) 5 m to 10 km
= 5 m : 10 × 1000 m [∵ 1 km = 1000 m]
= 5 m : 10000 m
= 1 : 2000
Hence, the ratio = 1 : 2000
(c) 50 paise to ₹ 5
= 50 paise : 5 × 100 paise
= 50 paise : 500 paise
ratio = 1 : 10
Ex 8.1 Class 8 Maths Question 2.
Convert the following ratios to percentages:
(a) 3 : 4
(b) 2 : 3
Solution:

Ex 8.1 Class 8 Maths Question 3.
72% of 25 students are good in mathematics. How many are not good in mathematics?
Solution:
Number of students who are good in mathematics = 72% of 25

Number of students who are not good in mathematics = 25 – 18 = 7
For more click on the given links:
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-1/">Comparing Quantities Exercise 8.1</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-2/">Comparing Quantities Exercise 8.2</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-3/">Comparing Quantities Exercise 8.3</a>
Posted by Navita Singla 5 years ago
- 1 answers
Diksha Laniya🐥 5 years ago
Posted by Priyanshi Pandit 5 years ago
- 2 answers
Diksha Laniya🐥 5 years ago
Posted by Saurya Raj 5 years ago
- 2 answers
Diksha Laniya🐥 5 years ago
Posted by Diksha Laniya🐥 5 years ago
- 1 answers
Gaurav Seth 5 years ago
Ex 8.1 Class 8 Maths 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 ₹ 5
Solution:
(a) Speed of cycle : Speed of Scooter = 15 km per hour : 30 km per hour
= 1530 = 12
Hence, the ratio = 1 : 2
(b) 5 m to 10 km
= 5 m : 10 × 1000 m [∵ 1 km = 1000 m]
= 5 m : 10000 m
= 1 : 2000
Hence, the ratio = 1 : 2000
(c) 50 paise to ₹ 5
= 50 paise : 5 × 100 paise
= 50 paise : 500 paise
ratio = 1 : 10
Ex 8.1 Class 8 Maths Question 2.
Convert the following ratios to percentages:
(a) 3 : 4
(b) 2 : 3
Solution:

Ex 8.1 Class 8 Maths Question 3.
72% of 25 students are good in mathematics. How many are not good in mathematics?
Solution:
Number of students who are good in mathematics = 72% of 25

Number of students who are not good in mathematics = 25 – 18 = 7
For more click on the given links:
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-1/" style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; user-select: initial !important; touch-action: manipulation; background-color: transparent; color: var(--ion-color-primary,#3880ff);">Comparing Quantities Exercise 8.1</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-2/" style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; user-select: initial !important; touch-action: manipulation; background-color: transparent; color: var(--ion-color-primary,#3880ff);">Comparing Quantities Exercise 8.2</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-3/" style="box-sizing: border-box; -webkit-tap-highlight-color: transparent; user-select: initial !important; touch-action: manipulation; background-color: transparent; color: var(--ion-color-primary,#3880ff);">Comparing Quantities Exercise 8.3</a>
Posted by Diksha Laniya🐥 5 years ago
- 3 answers
Diksha Laniya🐥 5 years ago
Gaurav Seth 5 years ago
Don't post personal information, mobile numbers and other details.
Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
Ask specific question which are clear and concise.
If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html
Posted by Diksha Laniya🐥 5 years ago
- 2 answers
Gaurav Seth 5 years ago
Ex 8.1 Class 8 Maths 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 ₹ 5
Solution:
(a) Speed of cycle : Speed of Scooter = 15 km per hour : 30 km per hour
= 1530 = 12
Hence, the ratio = 1 : 2
(b) 5 m to 10 km
= 5 m : 10 × 1000 m [∵ 1 km = 1000 m]
= 5 m : 10000 m
= 1 : 2000
Hence, the ratio = 1 : 2000
(c) 50 paise to ₹ 5
= 50 paise : 5 × 100 paise
= 50 paise : 500 paise
ratio = 1 : 10
Ex 8.1 Class 8 Maths Question 2.
Convert the following ratios to percentages:
(a) 3 : 4
(b) 2 : 3
Solution:

Ex 8.1 Class 8 Maths Question 3.
72% of 25 students are good in mathematics. How many are not good in mathematics?
Solution:
Number of students who are good in mathematics = 72% of 25

Number of students who are not good in mathematics = 25 – 18 = 7
For more click on the given links:
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-1/">Comparing Quantities Exercise 8.1</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-2/">Comparing Quantities Exercise 8.2</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-3/">Comparing Quantities Exercise 8.3</a>
Posted by Diksha Laniya🐥 5 years ago
- 1 answers
Gaurav Seth 5 years ago
Ex 8.1 Class 8 Maths 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 ₹ 5
Solution:
(a) Speed of cycle : Speed of Scooter = 15 km per hour : 30 km per hour
= 1530 = 12
Hence, the ratio = 1 : 2
(b) 5 m to 10 km
= 5 m : 10 × 1000 m [∵ 1 km = 1000 m]
= 5 m : 10000 m
= 1 : 2000
Hence, the ratio = 1 : 2000
(c) 50 paise to ₹ 5
= 50 paise : 5 × 100 paise
= 50 paise : 500 paise
ratio = 1 : 10
Ex 8.1 Class 8 Maths Question 2.
Convert the following ratios to percentages:
(a) 3 : 4
(b) 2 : 3
Solution:

Ex 8.1 Class 8 Maths Question 3.
72% of 25 students are good in mathematics. How many are not good in mathematics?
Solution:
Number of students who are good in mathematics = 72% of 25

Number of students who are not good in mathematics = 25 – 18 = 7
For more click on the given links:
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-1/">Comparing Quantities Exercise 8.1</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-2/">Comparing Quantities Exercise 8.2</a>
- <a href="http://mycbseguide.com/blog/ncert-solutions-class-8-maths-exercise-8-3/">Comparing Quantities Exercise 8.3</a>
Posted by Monali Das 5 years ago
- 1 answers
Posted by Umar 1234 5 years ago
- 1 answers
Diksha Laniya🐥 5 years ago
Posted by Diksha Laniya🐥 5 years ago
- 4 answers
Gaurav Seth 5 years ago
- Don't post personal information, mobile numbers and other details.
- Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
- Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
- Ask specific question which are clear and concise.
If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html
Diksha Laniya🐥 5 years ago
Posted by Salif Islam 5 years ago
- 0 answers

myCBSEguide
Trusted by 1 Crore+ Students

Test Generator
Create papers online. It's FREE.

CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
myCBSEguide
Diksha Laniya🐥 5 years ago
1Thank You