Recess Time
Its recess time. Peter brought 4 loaves of bread while Pete got 3 loaves. One of their friends, Pedro, haven't brought anything except $7.00. So, Pete and Peter decided to share what they've got equally among themselves. Pedro then decided that to be fair he will pay them with what he have equally. So much does Peter and Pete receive from the $7.00??
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1 solution
Pedro gives Peter and Pete $7 in exchange for (4+3)/3 loaves of bread. This means that 1 loaf of bread = 7/(7/3) dollars = $3. Since Peter originally had 4 loaves, that means that it was worth 4 x 3 = $12. He then consumes 7/3 loaves for himself which is equivalent to $7. Therefore, Peter has $12-$7 = $5. If Peter has $5 then Pete must have $7-$5 = $2.