The ratio of adults to children is 7:3. Based on this ratio, if there are 370 people, how many are children?
Answer (2)
In a ratio of 7:3, for every 7 adults you have 3 children. So 30% of the total are children. I.e. if you have 10 people .7 times (10) are adults or 7 and .3 times (10) are children or 3. So for 370 people, .3 times 370 are children, or 111.
In a group of 370 people with a ratio of adults to children of 7:3, there are 111 children. This is calculated by determining the value of one part of the ratio, which is 37. Multiplying this by the number of parts for children (3) gives us 111 children.
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