Level 3
There were a total of 88 questions in a Maths test. 10 marks were awarded for each correct answer and 2 marks were deducted for each incorrect answer or each incomplete answer. Betty could not complete all the questions in time and left the last 11 questions blank. She scored 472 marks. How many more correct answers than wrong answers did she answer?
Level 3
A ferry can carry a maximum of 35 adults or 40 children. A ticket for an adult cost $45 and a ticket for a child cost $20. A group of adults and children took 3 such ferries at maximum load on a ferry trip. They paid a total of $3795 for the tickets.
Level 3 A ferry can carry a maximum of 30 adults or 50 children. A ticket for an adult cost $60 and a ticket for a child cost $35. A group of adults and children took 2 such ferries at maximum load on a ferry trip. The total amount paid for the adults was $1115 more than the total amount paid for the children.
