Fredrick after spending 20% of his monthly salary in buying electronic

1.	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 ?1). Rs. 38,7002). Rs. 35,6503). Rs. 40,2004). Rs. 37,950
Answer» 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

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 ?1). Rs. 38,7002). Rs. 35,6503). Rs. 40,2004). Rs. 37,950

Answer»

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

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