The average expenditure of a labourer for 7 months was 85 and he fell into debt. In the next 4 months by reducing his monthly expenses to 60 he not only cleared off his debt but also saved 30. His monthly income is	Choose the most appropriate option:
A) 70.11
B) 72.02
C) 86.5
D) 78.2
E) None of the above
Income of 7 months = (7 × 85) – debt   = 595 – debt   Income of the man for next 4 months   = 4 × 60 + debt + 30   = 270 + debt   ∴ Income of 10 months = 865   Average monthly income = 865 ÷ 10 = 86.5   Answer 86.5
<result>C</result>
The average expenditure of a labourer for 7 months was 85 and he fell into debt. In the next 4 months by reducing his monthly expenses to 60 he not only cleared off his debt but also saved 30. His monthly income is