The correct option is B 123.75 According to question, we have y=125 + 10% of 125 = 110/100×125=137.5 x = 137.5 10% of 137.5 = 90/ ...

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Unitary Method

If a number ...

Question

If a number $x$ is $10$ % less than another number $y$ and $y$ is $10$ % more than $125$ , then $x$ is equal to

150

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143

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140.55

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123.75

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Solution

The correct option is B $123.75$
According to question, we have
$y = 125 + 10 % o f 125 =$ $\frac{110}{100} \times 125 = 137.5$
$x = 137.5 - 10 % o f 137.5$ $= \frac{90}{100} \times 137.5 = 123.75$

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