Problems based on Numbers Test 2

Question : 30 of 40

Marks: +1, -0

If a number is multiplied by three fourths of itself, the value obtained is 10,800. Which among the following is that number?

Solution:

Let the number be x
According to the statement,

x×3/4x=10800

x^2=4/3×10800

x=√{3600×4}

=60×2=120

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