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Q.

The average expenditure of a labourer for 6 months was  ₹ 85 and be fell into debt. 1n the next 4 months by reducing his monthly expenses to ₹ 60 be not only cleared off his debt but also saved  ₹ 30. His monthly income is

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a

 ₹ 78

b

 ₹ 72

c

75

d

 ₹70 

answer is D.

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Detailed Solution

Income of 6 months =  ₹ (6 x 85)-debl =  ₹  510-debt Income of the man for next 4 month = ₹ 4 x 60 + debt + ₹  30 = ₹ 270+debt 

:. lncome of 10 months =  ₹ 780 

Average monthly income = ₹  780 + 10 =  ₹ 78

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