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Challenge 3 A cup contains some coffee.Adnan drinks 2/5 of the coffee.There is 120 ml of coffee left.How much coffee was in the cup at the start? |
| Answer» LET:Original AMOUNT of coffee be 5/5x. Then5/5x-2/5x=120ml5/5x-2/5x=120ml3/5x=120ml3x=120×53x=600X=600÷3X=200 The coffee at the BEGINNING was 200 ml. | |