The average monthly expenditure of a family is Rs. 8160 for first 2 months, Rs. 12780 for next 5 months and Rs. 14280 for 5 months. If the family saves Rs. 66300 in the whole year, then what will be the average monthly income of the family?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. Rs. 18160.
| Understanding/Application |
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Average monthly expenditure for 2 months = Rs.8160 Total expenditure for 2 months = 8160(2) = Rs.16320 Average monthly expenditure for 5 months = Rs.12780 Total expenditure for 5 months = 12780(5) = Rs.63900 Average monthly expenditure for 5 months = Rs.14280 Total expenditure for 5 months = 14280(5) = Rs.71400 Total expenditure for 12 months = Rs.16320+Rs.63900 + Rs.71400 = Rs.151620 Savings for 12 months = Rs.66300 Income for 12 months = Rs.151620 + Rs.66300 = Rs.217920 |
| Average monthly income = 217920/12 = Rs. 18160 |