The school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who are on both teams). How many students in the school are not members of either the gymnastic team or the chess team?

{767}

{770}

{773}

{776}

Question

2 June, 20:35

+3

Answers (2)

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Theresa Horne · Answer 1

There are 17 members who are only in gymnastics, 7 who are only in chess, and 3 who are in both.

17+3+7=27

800-27=773

Gabriel Cherry · Answer 2

Not members=A

A + (20+10) + 3=800

A+33=800

A=800-33

A=776

There are 776 students are not members

The school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who are on both teams). How many students in the school are not members of either the gymnastic team or the chess team?{767}{770}{773}{776}