Bissoy.com
Doctors Medicines MCQs Q&A

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?

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? Correct Answer 60

Given:

Total number of legs = 200

Total number of heads = 80

Calculation:

Let there be x number of peacocks.

Number of deer = 80 – x

Number of legs a peacock has = 2

Number of legs a deer has = 4

Total number of legs, 200 = 2 × number of peacocks + 4 × number of deer

200 = 2 × x + 4 × (80 – x)

200 = 320 – 2x

Or, x = 60

∴ The number of peacocks in the zoo is 60.

Related Questions

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 ?
The average number of tigers in two Zoo X and Y was 81. The number of Cheetah in Zoo X is 48 which is two-third of the number of lions in Zoo X. The number of tiger in Zoo Y is 10 more than the average of the number of lions in Zoo X and the number of cheetah in Zoo X. Find the number of tigers in Zoo X.
There are deer and peacocks in a zoo. The total number of their heads is 80 and the total number of their legs is 200. How many peacocks are there?
There are deers and peacocks in a zoo. By counting heads they are 80. The number of their legs is 200. How many peacocks are there?
There are lions and peacocks in a forest. By counting their heads, they are 60. The number of their legs is 190. How many peacocks are there?
A Zoo keeper 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 ?
A zoo keeper counted the heads of the animals in the zoo and found it to be 90. When he counted the legs of the animals, he found it to be 290. If the zoo had either peacock or horses, how many horses were there in the zoo?
In a Zoo, there are Rabbits and Pigeons. If heads are counted, there are 200 heads and if legs are counted there are 580 legs. How many pigeons are there?
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 250. The zoo had pigeons, horses and donkeys and the ratio of donkey to horse is 1 ∶ 2. How many horses were there in the zoo?
In a zoo, there are rabbits and pigeons. If heads are counted, there are 340 heads and if legs are counted there are 1060 legs.How many pigeons are there?