the aggregate monthly expenditure of a family was ₹18720 during the first 3 months, ₹20340 during the next 4 months and ₹21708 during the last 5 months of a year. if the total savings during the year be ₹35340 , find the average monthly income of the family
Answers
Answer:
The average month income of the family is ₹8009.75
Step-by-step explanation:
Given that
Average monthly expense during first 3 months = ₹18720
Average monthly expense during next 4 months = ₹20340
Average monthly expense during last 5 months = ₹21708
Total savings during the year = ₹35340
As we know
Total money earned yearly = total savings yearly + total expenses yearly
from the given information
total savings yearly = ₹35340
total expenses yearly = ₹18720 + ₹20340 + ₹21708 = ₹60777
so
Total money earned yearly = ₹35340 + ₹60777 = ₹96117
Now as we know
Average monthly income = Total money earned yearly / 12
Average monthly income = ₹96117/12 = ₹8009.75
So average month income of the family is ₹8009.75
Answer:
₹23450
Step-by-step explanation:
Sum of the expenditure for the first 3 months:
Average of 1 month = ₹18720
3 months = 18720 x 3 = ₹56160
Sum of the expenditure for the next 4 months:
Average of 1 month = ₹20340
4 months = 20340 x 4 = ₹81360
Sum of the expenditure for the next 5 months:
Average of 1 month = ₹21708
5 months = 21708 x 5 = ₹108540
Find the total expenditure:
Total = 56160 + 81360 + 108540 = ₹246060
Find the total income:
Total Saving = ₹35340 (Given)
Total income = total expenditure + total saving
Total income = 246060 + 35340 = ₹281400
Find the average monthly income:
12 months = ₹281400
1 month = 281400 ÷ 12 = ₹23450
Answer: The average month income is ₹23450