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The average expenditure of a man for the first five months is Rs.120 a

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Bunuel
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The average expenditure of a man for the first five months is Rs.120 a [#permalink] New post   21 Feb 2019, 00:14
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The average expenditure of a man for the first five months is Rs.120 and for the next seven months it is Rs.130. If he saves Rs.290 in that year, his monthly average income is:

A. Rs.140
B. Rs.150
C. Rs.160
D. Rs.170
E. Rs.180
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B
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The average expenditure of a man for the first five months is Rs.120 a [#permalink] New post   21 Feb 2019, 03:08
Bunuel wrote:
The average expenditure of a man for the first five months is Rs.120 and for the next seven months it is Rs.130. If he saves Rs.290 in that year, his monthly average income is:

A. Rs.140
B. Rs.150
C. Rs.160
D. Rs.170
E. Rs.180



Total Expenditure for first 5 months = 120 *5 = 600

Total expenditure for last 7 months = 130 * 7 = 910.

Total expenditure = 600 + 910 = 1510

savings = 290.

Expenditure + savings = total earnings

1510 + 290 = 1800

Average income = 1800 / 12 = 150.

B is the correct answer.
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Re: The average expenditure of a man for the first five months is Rs.120 a [#permalink] New post   21 Feb 2019, 08:38
Bunuel wrote:
The average expenditure of a man for the first five months is Rs.120 and for the next seven months it is Rs.130. If he saves Rs.290 in that year, his monthly average income is:

A. Rs.140
B. Rs.150
C. Rs.160
D. Rs.170
E. Rs.180


total expense = 120*5 + 130*7 = 1510
and savings ; 290
total salary = 1510+290; 1800
avg = 1800/12 ; 150 IMO B
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Re: The average expenditure of a man for the first five months is Rs.120 a [#permalink] New post   05 Aug 2020, 22:39
Bunuel wrote:
The average expenditure of a man for the first five months is Rs.120 and for the next seven months it is Rs.130. If he saves Rs.290 in that year, his monthly average income is:

A. Rs.140
B. Rs.150
C. Rs.160
D. Rs.170
E. Rs.180


5-month:
120*5=600
7-month:
130*7=910

Total Income=600+910+290=1800
Average Monthly Income=1800/12=150
B
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Re: The average expenditure of a man for the first five months is Rs.120 a [#permalink] New post   06 Aug 2020, 00:44
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Total expense (first 5 months) = 120 *5 = 600 and Total expense (last 7 months) = 130 * 7 = 910.

Overall expense for the year = 600 + 910 = 1510
Given that : Savings = 290.

Income - Expense = Savings OR Income = Expense + Savings (In our case)

Income: 1510 + 290 = 1800

Average income for the year = 1800 / 12 = 150.

Correct answer is B.
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Re: The average expenditure of a man for the first five months is Rs.120 a [#permalink]
06 Aug 2020, 00:44
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