Answer :
To find the change from a $10 bill when buying 8 kilos of oranges, first determine the price of 8 kilos of oranges ($8.80), then subtract this from $10, giving a change of $1.20.
The subject of this question is a simple exercise in basic arithmetic.
We first need to determine how much the 8 kilos of oranges cost.
Since we know that 3 kilos of oranges are worth $3.30, one kilo of oranges would be worth $3.30/3 = $1.10.
So, 8 kilos of oranges would cost 8 × $1.10 = $8.80.
If you give a $10 bill to pay for this, the amount of change you would get back is $10 - $8.80 = $1.20.
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