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Mixtures and Alligation - Quant/Math - CAT 2009
Question 4 the day:
August 06, 2003
The question for the day is from the topic of Mixtures and Alligation.
- A zookeeper counted the heads of the animals in a zoo and found it to be 80. When he counted the legs of the animals he found it to be 260. If the zoo had either pigeons or horses, how many horses were there in the zoo?
| (1) |
40 |
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(2) |
30 |
| (3) |
50 |
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(4) |
60 |
Correct Answer - (3)
Solution:
Let the number of horses = x
Then the number of pigeons = 80 – x.
Each pigeon has 2 legs and each horse has 4 legs.
Therefore, total number of legs = 4x + 2(80-x) = 260
=>4x + 160 – 2x = 260
=>2x = 100
=>x = 50.
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