Question

please guys answer me .
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Answer 1

Step-by-step explanation:

answer is 3.10 is correct

Answer 2

Step-by-step explanation:

3:1

total ratio =3+1

=4

(3/4)×100 =75%

(1/4)×100=25%

2) 2:3:5

total ratio = 2+3+5

=10

(2/10)×100= 20%

(3/10)×100=30%

(5/10)×100=50%