Aspire Faculty ID #16927 · Topic: AMU MCA 2024 · Just now
AMU MCA 2024

In a zoo, there are rabbits and pigeons. If heads are counted there are 200 in all and if legs are counted there are 580 in all. How many pigeons are there in the zoo?

Solution

Let rabbits = r, pigeons = p

Heads:
r + p = 200

Legs:
4r + 2p = 580

Multiply first equation by 2:
2r + 2p = 400

Subtract:
2r = 180 → r = 90

So p = 200 − 90 = 110

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