Level 3
The number of banana puffs Caden baked was 47 of the total number of puffs. After baking another 98 banana puffs, the number of banana puffs became 67 of the total number of puffs. How many puffs did she bake at first?
Level 3
The average test score of a group of pupils was 57 marks. After 4 pupils who scored an average of 69 marks joined the group, the average score of all the pupils became 61 marks. How many pupils were there in the group at first?
Level 3
Peter has 70% as many marbles as George. If Peter gives away 50% of the marbles and George gives away 75% of his marbles, they will have 444 marbles altogether. How many marbles do the two of them have?
Level 3
A drink stall had 66 small and big packets of green tea. The number of small packets is 29 of the number of big packets. After selling a few big packets of green tea, there are 14 as many small packets as big packets left. How many big packets of green tea were sold?
Level 3
The average test score of a group of students was 71 marks. After five students who scored an average of 79 marks left the group, the average score of the group became 69 marks. How many students were there at first?
