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Secondary 1 | Maths
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Date Posted: 4 years ago
Views: 421
300 ml : $8.80
300 ml + 50 ml : $10.60
$10.60 - $8.80 = $1.80
For an extra 50 ml, you pay $1.80 more.
Pretend that you can buy extra in amounts of 50 ml.
Now , an extra 300ml would be 6 times of 50ml. That would have cost 6 x $1.80 = $10.80
Notice that this 300ml is more expensive than the $8.80 you paid for the original 300 ml in option A
Which means 50ml of it would be more expensive than each 50ml of the original 300ml in option A.
So option B is actually not as worth as you're paying more for this extra 50ml than you did for each 50ml portion in the option A.
Option A is a better choice.
300 ml + 50 ml : $10.60
$10.60 - $8.80 = $1.80
For an extra 50 ml, you pay $1.80 more.
Pretend that you can buy extra in amounts of 50 ml.
Now , an extra 300ml would be 6 times of 50ml. That would have cost 6 x $1.80 = $10.80
Notice that this 300ml is more expensive than the $8.80 you paid for the original 300 ml in option A
Which means 50ml of it would be more expensive than each 50ml of the original 300ml in option A.
So option B is actually not as worth as you're paying more for this extra 50ml than you did for each 50ml portion in the option A.
Option A is a better choice.
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done
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:))
Date Posted:
4 years ago
done
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I hope this makes sense
Date Posted:
4 years ago
This is a approximation error in value for money contexts where one is supposed to take the actual value instead of a rounded one
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