Question

Forty-three girls went camping. The girls were able to choose to participate in karate and swimming. Twenty-one girls went swimming, eight participated in both activities, and seven girls did neither. How many girls only did karate?

Answer 1

7

Answer 2

add all the girls together then subtract from 43

Answer 3

Draw a Venn Diagram.

Answer 4

Fill in the numbers.

Answer 5

The answer is not 7.

Answer 6

whats the answer then?

Answer 7

I am not allowed to give out answers but I can assist you in finding the answer.

Answer 8

please help meeee

Answer 9

the answer is 7

Answer 10

In the diagram above first put the number 8 in the area shared by both karate and swimming. Then what number will go in the swimming circle outside the shared area. (Hint: 21 girls went swimming. 8 out of that 21 did BOTH swimming and jkrate).

Answer 11

omg range it is 7

Answer 12

@peaceout: 8 girls participated in BOTH Karate and Swimming.
A TOTAL of 21 girls went swimming.
So when you add 21 girls who went swimming and 8 girls who went to swimming and karate, you are DOUBLE COUNTING. Now you are getting 29 girls who went swimming when the total is 21.

Answer 13

then it would be 6 @ranga

Answer 14

21+8+8=37 then 43-37=6 @ranga

Answer 15

8 is in BOTH circles.
In Swimming Circle, 8 + 13 = 21 (given)
Outside both circles (that is neither swimming circle nor karate circle) = 7
Total is 43. So in the Karate circle outside the shared region, the number must be: 43 - 8 - 13 - 7 = 15.

So:
15 did Karate ONLY (no swimming)
8 did Karate AND Swimming
13 did Swimming ONLY (no karate)
7 did neither Swimming nor karate.

If you add the numbers in the Karate circle it is: 15 + 8 = 23.
So 23 girls did Karate.

Answer 16

ok that makes sense