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.
Question 1: 6 3/4 so option b
8 2/3
because 6 1/2 divided by 3/4 is 8 2/3
576577 is the right answer and the right to
