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Please I just need help with these two questions

Please I just need help with these two questions-example-1
Please I just need help with these two questions-example-1
Please I just need help with these two questions-example-2

1 Answer

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Question 1:

Each of these options can be read as "8 to 15", except for 15:8. This is read as "fifteen to eight". Lets say in 8:15 you have 8 of a and 15 of b. In 15:8, however, you have 15 of a and 8 of b. These are not the same ratio.

Question 2:

The amount of people that can go down the slide in 1 minute is 6, because 18/3 = 6. So:

12/6 = 2
6ppl/1min (multiply both terms by 2)
12ppl/2min

It would take 12 people 2 minutes to go down the slide.

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