Answer:
400 girls.
480 boys.
Step-by-step explanation:
If the number of girls is x then the number of boys is 1.2x, so we have:
x + 1.2x = 880
2.2x = 880
x = 880/2.2
= 400.
Girls = 400, boys = 1.2*400 = 480.
Answer:
8.33 hours
Step-by-step explanation:
120-45 = 75
75 ÷ 9 = 8.33
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The question is 15,16,21,23,25,25,25,39
Mode is most so the answer is 25