102,938 views
24 votes
24 votes
A) there are 13 girls and 16 boys inside of a class, if half of the boys and all of the girls want to use the computers in pairs (of two) how many computers would be needed to cater for the pairs?

User Jitendra Solanki
by
2.6k points

2 Answers

24 votes
24 votes
Only half of the 16 boys are using the computers, so, 16/2 = 8
All of the 13 girls are using computers.

8 + 13 = 21

That leaves us with 21 people, but since these people will share computers, (in pairs) we divide 21 by 2.

21/2 = 10.5
You can’t have half of a computer, so you round up so there is still enough computers for everyone, therefore, 11 computers will be needed.
User Kevin Hutchinson
by
2.9k points
16 votes
16 votes

Answer: 11 computers.

Explanation:

G=13, B=16

16/2+13= 8+13 =21

21÷2= 10.5

0,5 computer does not exist, so They need 11 computers.

User Stefano Brozzi
by
3.5k points
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