Level 2
The average height of 3 children was 1.32 m. One of the children, whose height was 1.3 m, left the group. What was the average height of the remaining children?
Level 3
A fruit vendor ordered some fruits. 35% of the fruits he ordered were apples and the rest were oranges. Each apple cost $1.20 and each orange cost 50% more than each apple. The vendor paid a total of $636.
Level 2
A group of 5 pupils scores an average of 83 marks in a test. When a new pupil joins the group, their average score decreases to 79 marks. How many marks does the new pupil score?
Level 3
Olivia has 60% as many erasers as Penny. Penny has 180% as many erasers as Kate. If Penny gives 30 erasers to Kate, both will then have an equal number of erasers. Find the average number of erasers the three of them have.
