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In a pet shop there are 120 eyes and 172 legs. How many birds and puppies are included in these?
Read Solution (Total 2)
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- Let there are x birds and y puppies.
Each bird and puppy has 2 eyes. Each bird has 2 legs and each puppy has 4 legs.
Then 2x+2y = 120 => x+y = 60 (i)
2x+4y = 172 => x+2y = 86 (ii)
Solving (i) and (ii) we get
y = 26 & x = 34
So birds are 34 and puppies are 26. - 12 years agoHelpfull: Yes(15) No(0)
- 34 Birds and 26 Pets
No.of pets=172-120/4-2=52/2=26
No.of birds=34 - 12 years agoHelpfull: Yes(1) No(0)
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