120 children go on a holiday. The ratio of the number of girls to the number of boys is 3:5. On Sunday, all the children either go sailing or go climbing. 16/25 of the boys go climbing. Twice as many girls go sailing as go climbing. Work out how many children go sailing on sunday.

Answer: 19

Step-by-step explanation:

We know there are 25 boys, meaning if we divide it by 5 we can figure out that the number of girls is 15.

25 - 16 = 9 boys went sailing

15/3 <- - To find out how many of the girls went sailing

dividing it by 3 would also us to have one third going climbing at the remaining 2/3 going sailing

10 girls went sailing

10 + 9

=19