1. Fredrick after spending 20% of his 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. 38,700
(2) Rs. 35,650
(3) Rs. 40,200
(4) Rs. 37,950
(5) Rs 42,500