Ratio and Proportion Practice Test 1

Question : 7 of 40

Marks: +1, -0

If x : y = 5 : 7, then (5x + y) : (7x + 3y) is:

Solution:

According to the question,

x/y=5/7

Then

{5x+y}/{7x+3y}={5(x/y)+1}/{7(x/y)+3}

={5(5/7)+1}/{7(5/7)+3}=4/7

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