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Interpret data presented in circle graphs · Grade 7 · D1.3

Name: ______________________

Date: ______________________

1
A circle graph shows how 100 people voted. The "red" sector is 10% of the graph. How many people does it represent?
Warm-up
Answer:
2
A circle graph shows how 80 people voted. The "yellow" sector is 60% of the graph. How many people does it represent?
Warm-up
Answer:
3
A circle graph shows how 40 people voted. The "green" sector is 50% of the graph. How many people does it represent?
Warm-up
Answer:
4
In a circle graph of 40 people, 8 of them chose "purple". What percent of the graph is that? (Enter the number only.)
On level
Answer:
5
In a circle graph of 60 people, 18 of them chose "purple". What percent of the graph is that? (Enter the number only.)
On level
Answer:
6
In a circle graph of 80 people, 8 of them chose "blue". What percent of the graph is that? (Enter the number only.)
On level
Answer:
7
In a circle graph of 100 people, the "blue" sector is 35% and the "red" sector is 35%. The rest chose "yellow". How many people chose "yellow"?
Challenge
Answer:
8
In a circle graph of 60 people, the "blue" sector is 20% and the "purple" sector is 15%. The rest chose "green". How many people chose "green"?
Challenge
Answer:
9
In a circle graph of 40 people, the "yellow" sector is 35% and the "red" sector is 25%. The rest chose "blue". How many people chose "blue"?
Challenge
Answer:

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Worksheet code: eyJzIjoiZGF0YS1jaXJjbGUtZ3JhcGgiLCJkIjpbMTI1MjQyNDcxNiwyMDQwOTI5MTEsNzA3NjYyMDQwLDY4MTczNDk0MCwxNTM4MDM2MTQ1LDcxNTYyNDYyNiw1NzI3ODA3MTAsMTQ3ODUzMDU2LDY4NDkzMjYxMV0sInYiOjF9.fafa084f70ee

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Answer key · Interpret data presented in circle graphs

1.
10 — 10% of 100 = 100 × 10 ÷ 100 = 10.
2.
48 — 60% of 80 = 80 × 60 ÷ 100 = 48.
3.
20 — 50% of 40 = 40 × 50 ÷ 100 = 20.
4.
20 — 8 out of 40 = 8 ÷ 40 × 100 = 20%.
5.
30 — 18 out of 60 = 18 ÷ 60 × 100 = 30%.
6.
10 — 8 out of 80 = 8 ÷ 80 × 100 = 10%.
7.
30 — The rest is 30% of 100 = 30 people.
8.
39 — The rest is 65% of 60 = 39 people.
9.
16 — The rest is 40% of 40 = 16 people.