Asked by YEOW
5kg of flour and 4kg of sugar cost $14.80. If 3/4kg of flour costs the same as 3/5kg of sugar, what is the cost of one kg of sugar?
PS : How do we get the answer without using the algebra method?
Thank you.
PS : How do we get the answer without using the algebra method?
Thank you.
Answers
Answered by
Steve
flour:sugar = (3/4):(3/5) = 5:4
so, a kg of flour costs 4/5 as much as a kg of sugar.
That is, 5 kg of flour costs the same as 4 kg of sugar.
So, the 4 kg of sugar cost half of the $14.80. That means a kg of sugar costs $3.70
so, a kg of flour costs 4/5 as much as a kg of sugar.
That is, 5 kg of flour costs the same as 4 kg of sugar.
So, the 4 kg of sugar cost half of the $14.80. That means a kg of sugar costs $3.70
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