Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Primary 4 | Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Not sure how to solve this question. Please advise method
Date Posted: 5 years ago
Views: 235
64 + 76 + 84 = 224
224 is the total of 6 cards, where there are two of each type of number card.
This also means 224 is the sum of 2 sets of 3 different number cards.
So 1 set = 224 ÷ 2 = 112
Now we know that the largest card number is 48.
112 - 48 = 64
So the sum of the two smaller cards is 64.
This also tells you that in the two cards that give 84, one of them is 48.
84 - 48 = 36
So the other card is 36.
In the two cards that give 76, one of them is 48 too.
76 - 48 = 28
So the other card is 28.
Therefore, the three cards are 28 , 36 and 48.
The smallest is 28.
224 is the total of 6 cards, where there are two of each type of number card.
This also means 224 is the sum of 2 sets of 3 different number cards.
So 1 set = 224 ÷ 2 = 112
Now we know that the largest card number is 48.
112 - 48 = 64
So the sum of the two smaller cards is 64.
This also tells you that in the two cards that give 84, one of them is 48.
84 - 48 = 36
So the other card is 36.
In the two cards that give 76, one of them is 48 too.
76 - 48 = 28
So the other card is 28.
Therefore, the three cards are 28 , 36 and 48.
The smallest is 28.
See 1 Answer
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Hope this helps
Date Posted:
5 years ago
360 Tutoring Program