The average expenditure of a man for the first five months is $Rs.\, 120$ and for the next seven months is $Rs. \,130$ . His monthly average income in $Rs.$ if he saves $Rs. \,290$ in that year, is
The average expenditure of a man for the first five months is $Rs.\, 120$ and for the next seven months is $Rs. \,130$ . His monthly average income in $Rs.$ if he saves $Rs. \,290$ in that year, is
- A
$160$
- B
$170$
- C
$150$
- D
$140$
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$I.$ There are $11$ students in the class.
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$I.$ There are $11$ students in the class.
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$III.$ The average age of the teacher and the students is $3$ years more than that of the students.
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