Percentage Practice Test 5 with solutions

Question : 14 of 40

Marks: +1, -0

10% of a number is subtracted from it, the result is 1800. The number is

Solution:

Let the number be x; then

x-10/100×x=1800

⇒{9x}/10=1800

∴x={10×1800}/9=2000

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