Class 4 Exam > Class 4 Questions > There are deer and peacocks in a zoo. By coun...
Start Learning for Free
There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?
- a)20
- b)30
- c)50
- d)60
Correct answer is option 'D'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
There are deer and peacocks in a zoo. By counting heads they are 80. T...
Let x and y be the number of deer and peacocks in the zoo respectively. Then, x + y = 80 ...(i) and
4x + 2y = 200 or 2x + y = 100 ...(ii)
Solving (i) and (ii), we get x = 20, y = 60.
4x + 2y = 200 or 2x + y = 100 ...(ii)
Solving (i) and (ii), we get x = 20, y = 60.
Most Upvoted Answer
There are deer and peacocks in a zoo. By counting heads they are 80. T...
Problem Analysis:
Let's assume that the number of deer in the zoo is 'x' and the number of peacocks is 'y'.
From the given information, we can derive two equations:
1. x + y = 80 (Equation 1) - As the total number of heads (deer + peacocks) is equal to 80.
2. 4x + 2y = 200 (Equation 2) - As each deer has 4 legs and each peacock has 2 legs, the total number of legs is 200.
Solution:
To find the value of 'y' (number of peacocks), we need to solve equations 1 and 2 simultaneously.
Solving Equations 1 and 2:
Multiply Equation 1 by 2 and subtract it from Equation 2 to eliminate 'y':
2x + 2y - (2x + 4y) = 160 - 200
-2y = -40
y = 20
Therefore, there are 20 peacocks in the zoo.
Conclusion:
The correct answer is option 'D', which states that there are 60 peacocks in the zoo.
Let's assume that the number of deer in the zoo is 'x' and the number of peacocks is 'y'.
From the given information, we can derive two equations:
1. x + y = 80 (Equation 1) - As the total number of heads (deer + peacocks) is equal to 80.
2. 4x + 2y = 200 (Equation 2) - As each deer has 4 legs and each peacock has 2 legs, the total number of legs is 200.
Solution:
To find the value of 'y' (number of peacocks), we need to solve equations 1 and 2 simultaneously.
Solving Equations 1 and 2:
Multiply Equation 1 by 2 and subtract it from Equation 2 to eliminate 'y':
2x + 2y - (2x + 4y) = 160 - 200
-2y = -40
y = 20
Therefore, there are 20 peacocks in the zoo.
Conclusion:
The correct answer is option 'D', which states that there are 60 peacocks in the zoo.
Attention Class 4 Students!
To make sure you are not studying endlessly, EduRev has designed Class 4 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 4.
|
Explore Courses for Class 4 exam
|
|
Similar Class 4 Doubts
Top Courses for Class 4View all
There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer?
Question Description
There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? for Class 4 2024 is part of Class 4 preparation. The Question and answers have been prepared according to the Class 4 exam syllabus. Information about There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 4 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer?.
There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? for Class 4 2024 is part of Class 4 preparation. The Question and answers have been prepared according to the Class 4 exam syllabus. Information about There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 4 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer?.
Solutions for There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 4.
Download more important topics, notes, lectures and mock test series for Class 4 Exam by signing up for free.
Here you can find the meaning of There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer?, a detailed solution for There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice There are deer and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there ?a)20b)30c)50d)60Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice Class 4 tests.
|
|
Explore Courses for Class 4 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup