Hard problems that equal 1

Maurice has 54 fewer comic books than rebecca.they have 130 comic books together .how many comic books are in maurices collection ? how many comic books are in rebeccas collection

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.