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Question
primary 5 | Maths
| Rate & Ratio
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Date Posted: 4 years ago
Views: 787
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75 X 4 = 300
300-83-78 = 139
From here there are many possibilities:-
Math 79, 78, 77, 76, 75 .........
Sci. 60, 61, 62, 63, 64 ..........
Any 70s and 60s that add up to 139
300-83-78 = 139
From here there are many possibilities:-
Math 79, 78, 77, 76, 75 .........
Sci. 60, 61, 62, 63, 64 ..........
Any 70s and 60s that add up to 139
i need the working and answers
Sorry. Working and steps were clearly shown
Okay
done
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M + S = 139
If M=70, then S=69
If M=71, then S=68
....
....
IF M = 79, then S = 60
So,
M can be 70~79
S can be 69~60
If M=70, then S=69
If M=71, then S=68
....
....
IF M = 79, then S = 60
So,
M can be 70~79
S can be 69~60
Date Posted:
4 years ago
Thank you so much, sir!
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