Correct Answer - Option 1 : Rs 66,000
Given
Percentages of monthly income spent on traveling = 13%
Percentages of monthly income spent on household expenses = 27%
Percentages of monthly income spent on medical expenses = 35%
Percentages of monthly income spent on insurance = 5%
The family has the remaining amount as cash = Rs. 13200
Formula used
Total expenditure = Sum of all expenses
Calculation
Let the monthly income of the family = Rs 100
Total expenditure of family = (13 + 27 + 35 + 5)% = 80%
Savings of family = (100 - 80)% of 100 = Rs 20
Now, applying proportion
⇒ 20: 100::13200: x
⇒ x = 100 × 13200/20 = Rs 66000
∴ Monthly income of family is Rs 66,000.