There are Deer and Peacock in a zoo. By counting heads they are $80$ . The number of their legs in $200$ . How many Peacock are there?

20

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30

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50

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60

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Solution

The correct option is D $60$
$D + P = 80 . . . . (1)$
$4 D + 2 P = 200 . . . . . (2)$
$∴$ Solving both Eq. $(1)$ and $(2)$ , $D = 20$ and $P = 60$ .

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There are Deer and Peacock in a zoo. By counting heads they are 80. The number of their legs in 200. How many Peacock are there?

The correct option is D 60D+P=80....(1)4D+2P=200.....(2)∴ Solving both Eq. (1) and (2), D=20 and P=60.

There are Deer and Peacock in a zoo. By counting heads they are $80$ . The number of their legs in $200$ . How many Peacock are there?

The correct option is D $60$
$D + P = 80 . . . . (1)$
$4 D + 2 P = 200 . . . . . (2)$
$∴$ Solving both Eq. $(1)$ and $(2)$ , $D = 20$ and $P = 60$ .