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Question
primary 5 | Maths
| Rate & Ratio
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Date Posted: 4 years ago
Views: 394
(a)
12 more
(b)
Raymond has 42 marbles
12 more
(b)
Raymond has 42 marbles
See 1 Answer
(a) from the question, we can see
Sam has 20 more marbles than Kenneth
&
Sam has 8 more marbles than Raymond.
So,
Sam marbles
Kenneth : 20 less than Sam
Raymond : 8 less than Sam
As we can see, Kenneth would have 12 less marbles than Raymond. And Raymond have 12 more marbles than Kenneth.
(b)
Ratio of Kenneth : Raymond
5. : 7
Think of Kenneth having 5 packages with marbles and Raymond having 7 packages with marbles
Raymond has 2 more packages than Kenneth and
Raymond has 12 more marbles than Kenneth
So 1 package of marbles would be = 6
And Raymond has 7 packages.
So Raymond has 7x6=42 marbles
Sam has 20 more marbles than Kenneth
&
Sam has 8 more marbles than Raymond.
So,
Sam marbles
Kenneth : 20 less than Sam
Raymond : 8 less than Sam
As we can see, Kenneth would have 12 less marbles than Raymond. And Raymond have 12 more marbles than Kenneth.
(b)
Ratio of Kenneth : Raymond
5. : 7
Think of Kenneth having 5 packages with marbles and Raymond having 7 packages with marbles
Raymond has 2 more packages than Kenneth and
Raymond has 12 more marbles than Kenneth
So 1 package of marbles would be = 6
And Raymond has 7 packages.
So Raymond has 7x6=42 marbles
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