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Question
primary 5 | Maths
| Rate & Ratio
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Date Posted: 6 years ago
Views: 319
Find the sum of their present ages first.
111 - 10 - 10 = 91 years
(You have to subtract for both Lucy and Marcus)
Lucy's age = 4 units
Marcus's age = 9 units
Total age = __units
And __ units = 91 years
1 unit = ?
From here it is easy to solve
111 - 10 - 10 = 91 years
(You have to subtract for both Lucy and Marcus)
Lucy's age = 4 units
Marcus's age = 9 units
Total age = __units
And __ units = 91 years
1 unit = ?
From here it is easy to solve
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