Ratio and Proportion Practice Test 1

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Question : 12 of 40

Marks: +1, -0

If

x/11=y/ 15

, then (x + 11) : (y + 15) is equal to:

26 : 15
15 : 11
11 : 15
15 : 28
13 : 11

Solution:

Let

x/11= y/15 = k

, then

x = 11k, y - 15k

∴{y+11}/{y+15}={11k+11}/{15k+15}=11/15

∴ (x + 11) : (y + 15) = 11 : 15

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