A store purchased 20 coats that each cost an equal amount and then sold each of the 20 coats at an equal price. What wa the store's gross profit on the 20 coats?
1)If the selling price per coat had been twice as much, the store's gorss profit on the 20 coats would have been $2,400.
2)If the selling price per coat had benn $2 more, the store's gross profit on the 20 coats would have been $440.
I get B :
20(2SP - CP ) = 2400
INSUFF to get SP - CP
20( SP +2 - CP ) = 440 .
SP-CP = 20
SUFF..gross profit = 400