Level 3 The total mass of a kitten, a mouse and a puppy is 11 kg. The mouse is 0.4 kg heavier than the kitten. The puppy is 4 times as heavy as the mouse. Find the mass of the puppy.
Level 3 The total length of a string, a rope and a ribbon is 42.7 m. The ribbon is 14 m longer than the string. The rope is 5 times as long as the string. Find the difference in length between the rope and the ribbon.
Level 3
Mary had $2089. She spent $497 on a laptop. She used the remaining amount of money to buy a scanner and a printer. The printer cost $986 more than the scanner.
How much did she pay for the scanner and the printer?
Level 3
Nick, Billy and Ryan scored a total of 220 marks for their Mathematics test. Billy scored 67 marks. Ryan scored 12 more marks than Billy. How many marks did Nick score?