The ratio of boys to girls in the class is 4:5. How many boys are there if there are 27 students?
1 answer:
Answer:
12 boys
Step-by-step explanation:
boys : girls
4 : 5
Add a total column
boys : girls: total
4 : 5 : 4+5 =9
To get to a total of 27 we multiply each term by 3
boys : girls: total
4*3 : 5*3 : 9*3
12 :15 :27
There are 12 boys
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