Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 5 | Maths
| Whole Numbers
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Pls help. Thank you
Date Posted: 5 years ago
Views: 757
Every cow has 4 legs. Every duck has 2 legs.
Since there are 3 times as many ducks as cows, we group each cow with 3 ducks.
In one group, there are 3 ducks so they have a total of 3 x 2 legs = 6 legs. The 1 cow has 4 legs.
So total number of legs in one group is 4 + 6 = 10
Since there are 400 legs in total,
400 ÷ 10 = 40
There are 40 groups.
Since there are 4 animals per group (1 cow and 3 ducks),
Total number of animals
= 40 x 4
= 160
Since there are 3 times as many ducks as cows, we group each cow with 3 ducks.
In one group, there are 3 ducks so they have a total of 3 x 2 legs = 6 legs. The 1 cow has 4 legs.
So total number of legs in one group is 4 + 6 = 10
Since there are 400 legs in total,
400 ÷ 10 = 40
There are 40 groups.
Since there are 4 animals per group (1 cow and 3 ducks),
Total number of animals
= 40 x 4
= 160
Thank you very much for your help
Welcome
See 2 Answers
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps!
Date Posted:
5 years ago
Thank you
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
The answer is 160
Date Posted:
5 years ago
360 Tutoring Program