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RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise

May 30, 2022 by Fazal Leave a Comment

RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise is part of RBSE Solutions for Class 7 Maths. Here we have given Rajasthan Board RBSE Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise.

Board RBSE
Textbook SIERT, Rajasthan
Class Class 7
Subject Maths
Chapter Chapter 15
Chapter Name Comparison of Quantities
Exercise In Text Exercise
Number of Questions 16
Category RBSE Solutions

Rajasthan Board RBSE Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise

Do and Learn

(Page 159)
Question 1
Find the ratio of actual length and breadth (RBSESolutions.com) of mathematics book of class VII.
Solution:
Length of book = 27 cm.
Breadth = 15 cm
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 1

RBSE Solutions

Question 2
Find the ratio of length and breadth of national flag by taking help from your teacher.
Solution:
Different size of national flag (RBSESolutions.com) length and breadth ratio as follows :
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 2

Question 3
Find the ratio of length and breadth (RBSESolutions.com) of your classroom by measuring it
Solution:
Let the length and breadth of room is 30 feet and 20 feet.
Ratio = 30 : 20 = \(\frac { 30 }{ 20 }\) = \(\frac { 3 }{ 2 }\) = 3 : 2

Question 4
Measure your height and measure the length by expanding both the hand completely. Now find out the ratio between these two quantities.
Solution:
Length of both hands = 60 cm
Self height = 120 cm
Ratio = 120 : 60
\(\frac { 120 }{ 60 }\) = \(\frac { 2 }{ 1 }\) = 2 : 1

(Page 162)

Percentage Difference calculator is a free online tool to find the percent difference between two numbers.

Question 1
25 students of class tell their (RBSESolutions.com) interests about games.
Kabbadi – 4 students
Cricket – 11 students
Chess – 6 students
Tennis – 3 students
Other games – 1 students
Express the number of students in percentage according to the interest in each game.
Solution:
Total students = 25
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 3

Percentage Difference calculator – online basic math function tool to calculate how much percent difference between two quantities or observations.

Question 2
Following results are obtained on taking (RBSESolutions.com) advice of 250 students of preference of menu of mid day meal is selected school of Jalore Panchayat.
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 4
Express the percentage of preference of each type of menu from the above results.
Solution:
Total number (RBSESolutions.com) of students = 250
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 5

RBSE Solutions

(Page 163)
Question 1
Convert the following (RBSESolutions.com) fractions into per-centage.
(i) \(\frac { 5 }{ 8 }\)
(ii) \(\frac { 5 }{ 3 }\)
Solution:
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 6

Question 2
Convert the decimal(RBSESolutions.com) fractions into percentage.
(i) 0.5
(ii) 0.08
(iii) 0.225
(iv) 6.5
Solution:
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 7
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 8

Question 3
Convert the percentage (RBSESolutions.com) into simple fraction and decimal fraction
(i) 36%
(ii) 12\(\frac { 1 }{ 2 }\)%
(iii) 3.6%
Solution:
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 9

(Page 166)

convert CGPA into percentage? Read this blog to understand an easy process to calculate percentage from CGPA.

Question 1
The population of a village is increased (RBSESolutions.com) to 15000 from 12000 in last 10 years. Then what is the percentage growth of population ?
Solution:
Population of village = 12000
Increased population of village in last 10 year = 15000
Increase in population = (15000 – 12000) = 3000
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 10

Question 2
Express rate of growth or loss in the (RBSESolutions.com) form of percentage in the following :
(1) The cost of electricity per unit has increased to ₹6.00 from ₹3.50
(2) The cost of 100 envelopes has decreased to ₹80 from ₹100.
Solution:
(1) Original rate per unit = ₹3.50
Increased rate per unit = ₹6
increase = 6 – 3.50 = ₹2.50
RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise - 11
(2)100 envelopes cost = ₹100
New price = ₹80
Decrease in price = 100 – 80 = ₹20
Decrease % = \(\frac { 20 }{ 100 }\) x 100% = 20%

RBSE Solutions

(Page 168)
Question 1
Mahaveer bought 5 bags of sugar for ₹16000. He (RBSESolutions.com) spent ₹200 for taxi fare, ₹120 for labour charges and ₹200 for transporttation charges. Find the selling price of per kg of sugar so as to earn a profit of ₹3 on each kg.
Solution:
Cost of 5 bags of sugar = ₹16000
Other expenses = ₹200 + ₹120 + ₹200
= ₹520
∴ Total C.P. of 5 bags of sugar
= ₹16000 + ₹520 = ₹16520
∵ Profit on 1 kg = ₹3
Profit on 5 bags or 500 kg sugar
= 500 x 3 = ₹1500
So, Profit = S.P – C.P
or S.P = C.P + Profit
= 16520+ 1500 = ₹18020
So, S.P. of 5 bags = ₹18020
S.P. of 1 bag = \(\frac { 1820 }{ 5 }\) = ₹3604

Question 2
Manoj bought a second hand car for ₹1,50,000. He spent ₹60,000 on Its (RBSESolutions.com) engine repair and ₹15000 on replacing the tyre tubes. Manoj sold this car to Jitendra for ₹2,10,000 Calculate loss or gain in this business.
Solution:
Cost of car = ₹1,50,000
Expense on engine = ₹60,000
Expense on tyre & tube = ₹15,000
Total cost price = ₹2,25,000
Selling price = ₹2,10,000
Manoj has a loss
So, Loss = C.P – S.P
= 2,25,000 – 2,10,000
Loss = ₹15,000
Manoj has a loss of ₹ 15,000

Percentage Difference calculator – online basic math function tool to calculate how much percent difference between two quantities or observations.

(Page 170)
Ashok has borrowed ₹50000/- for the construction (RBSESolutions.com) of his house. This borrowed amount is known as Principal. He repays ₹55000 to that institute after one year.
Ashok paid ₹5,000/- extra on ₹50,000. This extra amount is known as interest.
The amount of interest depends on following things:
1. Borrowed money (Principal)
2. Time (Period for which the amount is borrowed).
3. Rate (The extra amount paid on per hundred) which is determined on the basis of per mounth/per annum.
You can find the amount you have to pay at the end of the year by adding sum borrowed and the interest
i.e., Amount = Principal + Interest

Question 1
How much interest would Ashok have pay after 2 years if he (RBSESolutions.com) was not able to return the money to the instutute after 1 year ?
Solution:
Because after one year he pays ₹5000/-
as interest so in 2 years he has to pay ₹10000/- as interest.

Question 2
How much money in (RBSESolutions.com) total has to be paid including interest?
Solution:
Amount = Principal + Interest
= 50,000 + 10,000
= ₹60,000/-

RBSE Solutions

We hope the RBSE Solutions for Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise will help you. If you have any query regarding Rajasthan Board RBSE Class 7 Maths Chapter 15 Comparison of Quantities In Text Exercise, drop a comment below and we will get back to you at the earliest.

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