Question
Download Solution PDFThere 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?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFSolution:
A deer has 4 legs and a peacock has 2 legs. Let x be the number of deer and y be the numbers of peacocks in the zoo.
Then,
4x + 2y = 200
∴ 2x + y = 100 …1
And
x + y = 80
∴ y = 80 – x
Substituting y in eq. 1,
2x + 80 – x = 100
∴ x = 20
Thus,
y = 60
So, the number of deer is 20 and number of peacocks is 60.Last updated on Jun 25, 2025
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