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primary 6 | Maths
| Geometry
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For every "replacement" of one small bottle to one big bottle, there is an increase in capacity of 200 ml.
If we were to replace four small bottles with four big bottles, the capacity increase would be 800 ml.
Correct?
Do not proceed to the next step if you do not understand the above.
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Because the total capacity of Edwina's bottles is 800 ml more than that of Georgia's bottles, Edwina would have exactly the same number of bottles of each type as Georgia...
...except that four small bottles was "replaced" with four big bottles.
So, Edwina has four more big bottles than Georgia but four fewer small bottles than Georgia.
If Edwina has four more big bottles then Georgia...
...then Edwina would have 16 + 4 = 20 big bottles.
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And then, Georgia would have 5 + 4 = 9 small bottles.
So, Edwina has 5 small bottles and 20 big bottles while Georgia has 9 small bottles and 16 big bottles.
Total capacity of Georgia's small bottles
= 400 x 9
= 3 600 ml
Total capacity of Georgia's big bottles
= 600 x 16
= 9 600 ml
Total capacity of all of Georgia's bottles
= 3 600 + 9 600
= 13 200 ml
= 13 L 200 ml (or 13.2 L)
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