The average expenditure of a labourer for 6 months was 70 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 i  Choose the correct choice:  A) 69  B) 72  C) 75  D) 78  E) 80
Income of 6 months = (6 × 70) – debt   = 420 – debt   Income of the man for next 4 months   = 4 × 60 + debt + 30   = 270 + debt   ∴ Income of 10 months = 690   69verage monthly income = 690 ÷ 10 = 69   69nswer 69
<result>A</result>
The average expenditure of a labourer for 6 months was 70 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 i