Level 3 Lucy saved some of her school pocket money for 4 days. She saved $3 on the first day. For the remaining 3 days, she saved $0.40 more than the previous day.
How much money did she save in 4 days?
Lucy then spent all her savings on 9 identical notebooks. How much did each notebook cost?
Level 3 A basket containing 3 persimmons had a total mass of 7 kg. When 4 more persimmons were added into the basket, the total mass became 14.6 kg. Find the mass of the empty basket.
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 Julie went to the grocer with 5 pieces of $2-notes. She bought 3 starfruits and 4 persimmons. Each starfruit cost 50¢. Each persimmon cost 70¢. How much money had she left?