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Question
primary 5 | Maths
| Fractions
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Date Posted: 4 years ago
Views: 889
at first
B: 12u
S: 12u + 285
spent
B: 8u
S: 4u + 95
left
B: 4u
S: 8u + 190
8u + 190 = 4u + 330
1u = 35
at first B has $420
.
.
.
B: 12u
S: 12u + 285
spent
B: 8u
S: 4u + 95
left
B: 4u
S: 8u + 190
8u + 190 = 4u + 330
1u = 35
at first B has $420
.
.
.
See 1 Answer
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Model is difficult to draw for this question so we will use units instead.
Let Bala's units be 12 at the start as a common denominator for 3 and 4 is 12. Siti will have 12 units + 285.
When Siti spends 1/3, she will spend 1/3 of 12 units and also 1/3 of $285. Therefore she will have 8 units + $190 left.
Bala will have 3 units left and the difference between the amount they have left is $330. By drawing a model for that, we can see that 5 units is $140, so you can then find 12 units.
Let Bala's units be 12 at the start as a common denominator for 3 and 4 is 12. Siti will have 12 units + 285.
When Siti spends 1/3, she will spend 1/3 of 12 units and also 1/3 of $285. Therefore she will have 8 units + $190 left.
Bala will have 3 units left and the difference between the amount they have left is $330. By drawing a model for that, we can see that 5 units is $140, so you can then find 12 units.
Date Posted:
4 years ago
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