Percentage Practice Test 6 with solutions

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Question : 32 of 40

Marks: +1, -0

9% of a number is

81/ 200

, what is

2 /7

of that number?

$1 1 /5$
$1 2 /7$
$2 1 /7$
$2 1/ 5$

Solution:

Let the number be x; then

9/100×x=81/200

∴x={100×81}/{9×200}=9/2

Hence,

2/7x=2/7×9/2=9/7=1 2/7

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