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 ?


A) Rs 38,700/-

B) Rs 35,650/-

C) Rs 40,200/-

D) Rs 37,950/-

E) Rs 42,500/-

Correct answer:
A) Rs 38,700/-

Description for Correct answer:
Let the monthly salary be x

According to question,

= \( x \times \frac{70}{100} \times \frac{70}{100} = 18963 \)

x = Rs.38,700/-


Please provide the error details in above question