# How Many Peacocks are There ? If

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?

- 30
- 50
- 60
- 20

**Answer: (3) 60**

**Explanation:-
**Let the number of beers be X & the number of peacocks is Y.

The total number of heads = 80

The, X + Y = 80 …………………. (1)

The total number of their legs = 200

Then, 4 X + 2 Y = 200

Both sides are divide by 2 ,

Then, 2 X + Y = 100 ………………. (2)

Solve equation (1) & (2) ,

Equation (1) Subtract from (2) ,

Then, 2 X – X + Y – Y = 100 – 80

X = 20

Then, the number of peacocks = 80 – 20

= 60

Hence, the answer is (3) 60.