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Find the number : 125% of 3060 - 85% of (?) = 408
Answer & Solution
Correct Answer:
Option
D
Let 125% of 3060 - 85% of x = 408
Then,
$$\eqalign{ & 85\% {\text{ of }}x = \left( {\frac{{125}}{{100}} \times 3060} \right) - 408 \cr & \Rightarrow \frac{{85}}{{100}}x = 3825 - 408 \cr & \Rightarrow \frac{{17x}}{{20}} = 3417 \cr & \Rightarrow x = \left( {\frac{{3417 \times 20}}{{17}}} \right) \cr & \Rightarrow x = 4020 \cr} $$
Then,
$$\eqalign{ & 85\% {\text{ of }}x = \left( {\frac{{125}}{{100}} \times 3060} \right) - 408 \cr & \Rightarrow \frac{{85}}{{100}}x = 3825 - 408 \cr & \Rightarrow \frac{{17x}}{{20}} = 3417 \cr & \Rightarrow x = \left( {\frac{{3417 \times 20}}{{17}}} \right) \cr & \Rightarrow x = 4020 \cr} $$
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