Level 2
A group of 50 girls and 20 boys took part in a Mathematics test. The average score of the girls was 50 points. While the average score of the boys was 64 points. What was the average score of all the students who participated in the test?
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 1
Fill in the blanks.
There are red stickers and blue stickers.
The number of red stickers and the total number of stickers are in the ratio of 2 : 5.
Number of red stickers = _____ u
Number of blue stickers = _____ u
Total number of stickers = _____ u
Number of less red stickers than blue stickers = _____ u
Level 3
Jolene and Katie shared some necklaces. Jolene's share was 45% of Katie's share. She then increased her share of the necklaces by taking 20% of Katie's share. Given that Jolene had 18 fewer necklaces than Katie in the end, how many necklaces did the girls have altogether?
