RBSE Solutions for Class 8 Maths Chapter 13 Comparison of Quantities Ex 13.1 is part of RBSE Solutions for Class 8 Maths. Here we have given Rajasthan Board RBSE Class 8 Maths Chapter 13 Comparison of Quantities Exercise 13.1.
| Board | RBSE |
| Textbook | SIERT, Rajasthan |
| Class | Class 8 |
| Subject | Maths |
| Chapter | Chapter 13 |
| Chapter Name | Comparison of Quantities |
| Exercise | Exercise 13.1 |
| Number of Questions | 7 |
| Category | RBSE Solutions |
Rajasthan Board RBSE Class 8 Maths Chapter 13 Comparison of Quantities Ex 13.1
Question 1.
Convert following ratios into percentage.
(i) 1 : 4
(ii) 3:4
Solution
(i) 1:4
(ii) 3:4
Question 2.
Himi traveled 240 km. by bus and 360 km. by train then determine,
(i) Ratio of travelling by train and travelling by bus.
(ii) Ratio of travelling(RBSESolutions.com)by bus and by train.
(iii) Ratio of travelling by train and total travelling.
(iv) Ratio of travelling by bus and total travelling.
Solution:
(i) Journey by train = 360 km.
Journey by bus = 240 km.
∴ Ratio of journey travelled by train to journey travelled by bus = 360 : 240
= \(\frac { 360 }{ 120 } :\frac { 240 }{ 120 } \)
= 3 : 2
(ii) katio of journey travelled by bus to journey’ travelled by train
= 240 : 360
= 2 : 3
(iii) Ratio of journey travelled by train to total distance
= 360 : (240 + 360)
= 360 : 600
= \(\frac { 360 }{ 120 } :\frac { 600 }{ 120 } \) (HCF (360,600) = 120)
= 3 : 5
(iv) Ratio of journey travelled by bus to total distance
= 240 : 600
= \(\frac { 240 }{ 120 } :\frac { 600 }{ 120 } \) (HCF (240,600) = 120)
= 2 : 5
Question 3.
In class VIII 68% students obtained grade A out of 75 students. How many students obtainable grade A?
Solution:
No. of ‘A’ grade students = 68% of 75
= 75 x \(\frac { 68 }{ 100 }\)
= 51
Hence, 51 students got grade ‘A’.
Question 4.
A Kabaddi team of school has won 15 matches out of total matches played this year. If winning percentage was 75 then how many matches were played by the team?
Solution:
Let team played x matches.
Number of matches won = 15
∴ Percentage(RBSESolutions.com)of wins of the matches
= \(\frac { 15 }{ x }\) x 100%
According to question,
⇒ \(\frac { 15 }{ x }\) x 100 = 75
⇒ \(x=\frac { 15X100 }{ 75 }\)
⇒ x = 20
Hence, the total number of matches played by that team is 20.
Question 5.
There are 1275 trees in total in the field of Mohan. There are 36% trees that have fruits. Determine number of trees having fruits in the field.
Solution:
Total number of trees = 1275
Number of(RBSESolutions.com)prolific trees = 36% of 1275
= 1275 x \(\frac { 36 }{ 100 }\)
= 459
Hence, the required number of prolific trees is 459.
Question 6.
Kamli spent 75% of the amount deposited in her account under Pradhan Mantri Jan Dhan Yojana. Now the amount left in her account is Rs. 600. Determine(RBSESolutions.com)what was the amount deposited in here account?
Solution:
Let the amount deposited in account be Rs x. Then,
Spent money = 75% of x
Hence, total amount deposited in account was Rs 2400.
Question 7.
According to a survey of 50,000 students under mid day meal in five districts of Rajasthan, 60% students like Pulses—Chapati, 20% like vegetable and chapatti and rest like khichdi. Determine percentage of students who like khichdi?
Solution:
Total no. of students = 50,000
Number of students like Pulses and Chapatti = 60% of 50,000
= 50,000 x \(\frac { 60 }{ 100 }\) = 30,000
Number(RBSESolutions.com)of students like Vegetable and Chapatti = 25% of 50,000
= 50,000 x \(\frac { 25 }{ 100 }\)
= 12,500
Remaining students
= 50,000 – (30,000 + 12,500)
= 50,000 – 42,500
= 7,500
∴ No. of students like Khichdi = 7,500
∴ Percentage of students like Khichdi
= \(\frac { 7500 }{ 50000 }\) x 100
= 15%
Hence, 15% students like Khichdi.
We hope the given RBSE Solutions for Class 8 Maths Chapter 13 Comparison of Quantities Ex 13.1 will help you. If you have any query regarding Rajasthan Board RBSE Class 8 Maths Chapter 13 Comparison of Quantities Exercise 13.1, drop a comment below and we will get back to you at the earliest.