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Question

P5 Mathematics

Question post on Sat, 16/07/2022 8:25pm

Please help the below question:-

Mr Tong rears duck and cows on his farm. The ratio of the total number of legs of the ducks to the number of legs of the cows is 4:7. Find the minimum number of ducks Mr Tong has in his farm.

Thank you!

Answer

sushi88 · Answer 1 · Post on Sat, 16/07/2022 10:07pm

Ducks Legs Cows Legs

4 7

Since cows have 4 legs, minimum number of cows legs divisible by 4 is 28 ( as a multiple of 7, x4)

So, minimum duck legs = 4 x 4 = 16

Hence minimum number of ducks = 16/2 = 8

hnghng · Answer 2 · Post on Sun, 17/07/2022 8:41pm

hnghng Post on Sun, 17/07/2022 8:41pm

Thank you so much, sushi88!