Level 3
The average number of questions Daniel and Callie solved was 203. The average number of questions Callie and Evelyn solved was 194. The average number of questions Evelyn and Daniel solved was 181. How many questions did each of them solve?
Level 3
Class A, B and C were given some chocolate bars to sell for their fundraising event. The average number of chocolate bars the 3 classes had at first was 225. After Class B sold twice as many chocolate bars as Class A and Class C sold 34 as many chocolate bars as Class B, the average number of chocolate bars the 3 classes had left was 45. How many chocolate bars did Class A and Class C sell altogether?
Level 3
The average number of playing cards Brendon and Ricky had was 450. The average number of playing cards Brendon and Jonas had was 240. If the ratio of Ricky's playing cards to Jonas's playing cards was 5 : 2, find the number of playing cards Brendon had.
Level 3
There are 80 participants in a competition. The average score of each participant is 49.5. The average score of the female participants is 57 and the average score of the male participants is 47.
What is the total score of the 80 participants?
How many female participants are there in the competition?
Level 3
After an examination, Harish and his friends calculated their average score. They figured that if Harish could get 13 marks more, they would have an average of 90. However, if Harish's results were 5 marks less, their average would become 87. How many friends did Harish have?
