Question

if 7 is added to a ratio,it becomes 3:5,find the ratio​

Answer 1

Answer:

5:1

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Answer 2

42:70

let the two ratios be 3x and 5x (as x is being multiplied with 3:5)

so,

3x+7:5x+7=3:5

3x+7/5x+7=3/5

(3x+7)×5=3×(5x+7)

15x+35=15x+21

15x-15x=21-35

-x=-14

x=14

therefore, 3x = 3×14 = 42

5x = 5×14 = 70

thus the ratio is 42:70

hope this helps....

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