Ratio and Proportion Practice Test 3

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Question : 21 of 40

Marks: +1, -0

If X : Y : Z = 15 : 17 : 19, then

X/Y:Y/Z:Z/X

is equal to:

$17/15:19/17:15/19$
$15/17:17/19:19/15$
$1/15:1/17:19$
$1/19:1/17:1/15$
None of these

Solution:

Let X = 15a, Y = 17a, Z = 19a

X/Y={15a}/{17a},Y/Z={17a}/{19a},Z/X={19a}/{15a}

∴X/Y:Y/Z:Z/X=15/17:17/19:19/15

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