Question

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?

Answer 1

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.

Answer 2

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.