Level 2
From January to August last year, Sherrie read an average number of 7.5 story books per month. She did not read any story books in the next 4 months. On the average, how many story books did she read per month last year?
2 m
Level 1
The average mass of Perry, Ethan and Tom is 36 kg. The average mass of Perry and Ethan is 34 kg. Find Tom's mass.
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Level 1
The average cost of a duck and 6 turkeys is $10.20. The average cost of each turkey is $9.90. How much does the duck cost?
2 m
Level 1
A family's average monthly spending for August and September was $713. Their average monthly spending from October to December was $824. What was their total spending from August to December?
2 m
Level 1
The average of two numbers is 124 and the average of another set of two numbers is 262. Find the average of these four numbers.
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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?
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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?
2 m
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?
2 m
Level 2
The average height of six students is 125 cm. If the average height of five students is 120 cm, find the height of the sixth pupil.
2 m
Level 1
The bar graph shows the average daily temperature experienced by Country A in a week. What was the difference in the highest and lowest average daily temperatures in that week?
2 m