Question

Leah keeps ducks and buffalo in their farm and there are 35 animals with a total if 110 legs. How many ducks and buffalo are there?​

Answer 1

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Answer 2

GIVEN :

• 35 animals
• 110 legs

TO FIND :

• the number of ducks and buffalo are there.

OPTIONS :

(A) 20 ducks, 15 buffalo

(B) 15 ducks, 20 buffalo

CASE (i) - 20 ducks, 15 buffalo

= 20·2 + 15·4

= 40 + 60

= 100

CASE (ii) - 15 ducks, 20 buffalo

= 15·2 + 20·4

= 30 + 80

= 110

FINAL ANSWER :

Therefore, the number of ducks are 15 and 20 buffalo.