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Question
primary 6 | Maths
| Data Analysis
2 Answers Below
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Pls help to explain
1 mug can hold 130 ml more than 1 cup.
You can draw the model and then split them into 15 units each, so that 5 cups = 15 units and 3 mugs = 15 units (both are 15 units because they are poured from the same pot).
You will realise that 1 cup = 3 units and 1 mug = 5 units. The difference between 1 mug and 1 cup is 2 units, which is 130 ml of coffee.
2 units —> 130 ml
1 unit —> 65 ml
15 units —> 975 ml
So the pot can hold 975 ml of coffee.
See 2 Answers
So the amount of coffee a mug can hold is (X + 130) ml.
We know that 5X = 3(X + 130).
5X = 3X + 390
2X = 390
X = 195
Therefore, the amount of coffee a pot can hold is 5 * 195 = 975ml.
So from the model, 1 unit is the volume of a cup and (1 unit + 130) is the volume of a mug.