<human>:  Oliver has $40 and 200 quarters. If he gives his sister $5 and 120 quarters, how much money in total is he left with?
<bot>: How much money is in the quarters? ** The 200 quarters equals 200*$0.25 = $<<200*0.25=50>>50.
How much money does Oliver have? ** Oliver has a total of $40+$50 = $<<40+50=90>>90.
How much money does Oliver give his sister? ** He gives his sister 120*$0.25 = $<<120*0.25=30>>30 in total from the quarters.
How much money did Oliver give his sister? ** The total amount he gave to his sister is $30+$5= $<<30+5=35>>35.
How much money is Oliver left with? ** Oliver is left with $90-$35 = $<<90-35=55>>55.
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