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Question
primary 6 | Maths
| Ratio
One Answer Below
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Anyone tq
Date Posted: 4 years ago
Views: 224
See 1 Answer
Cost of ONE file= h
cost of ONE diary = Cost of ONE file x 2
= h x 2
= 2h
Total cost = Cost of 3 files + Cost of 3 diaries
Amount she paid = 3(h) + 3(2h)
50 - 5 =3h + 6h
45 = 9h
45÷9 =h
5 = h
Thus, cost of ONE file is $5
Thus, cost of ONE diary is $10
Therefore, cost of THREE diaries is $30
cost of ONE diary = Cost of ONE file x 2
= h x 2
= 2h
Total cost = Cost of 3 files + Cost of 3 diaries
Amount she paid = 3(h) + 3(2h)
50 - 5 =3h + 6h
45 = 9h
45÷9 =h
5 = h
Thus, cost of ONE file is $5
Thus, cost of ONE diary is $10
Therefore, cost of THREE diaries is $30
Tqq so much
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