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Fredrick after spending 20% of his monthly salary in buying electronic goods and 10% of the monthly salary in repair work of furniture, inv…

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Fredrick after spending 20% of his monthly salary in buying electronic goods and 10% of the monthly salary in repair work of furniture, invested 30% of the remaining amount in fixed deposits. If he was left with Rs. 18,963, how much is his monthly salary ?
  • ARs. 38,700
  • BRs. 35,650
  • CRs. 40,200
  • DRs. 37,950
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CCommunity
Solution
Let monthly salary = Rs. $100x$
Amount spent on buying electronic goods = $\frac{20}{100} \times 100x = 20x$
Amount spent on repair work = $\frac{10}{100} \times 100x = 10x$
Amount left = $100x - 20x - 10x = 70x$
Amount invested in fixed deposits = $\frac{30}{100} \times 70x = 21x$
=> Amount left = $70x - 21x = 49x$
Acc to ques,
=> $49x = 18963$
=> $x = \frac{18963}{49} = 387$
$\therefore$ Monthly salary = 100 * 387 = Rs. 38,700
0
CCommunity
Solution
Let monthly salary = Rs. $100x$
Amount spent on buying electronic goods = $\frac{20}{100} \times 100x = 20x$
Amount spent on repair work = $\frac{10}{100} \times 100x = 10x$
Amount left = $100x - 20x - 10x = 70x$
Amount invested in fixed deposits = $\frac{30}{100} \times 70x = 21x$
=> Amount left = $70x - 21x = 49x$
Acc to ques,
=> $49x = 18963$
=> $x = \frac{18963}{49} = 387$
$\therefore$ Monthly salary = 100 * 387 = Rs. 38,700