The average earning of a mechanic for the first-four days of a week is Rs. 16 and for the last four days is Rs. 24. If he earns Rs . 27 on the fourth day, his average earning for the whole week is ?
Choose the correct choice from the following answers.
A) Rs . 18.95
B) Rs 16
C) Rs. 19
D) Rs. 25.71
E) None of these
Answer   Total earning for the week = Sum of earning of first four days + Sum of earning of last four days - Earning of 4th day   = 4 x16 + 4 x 24 -27   = Rs. 133   âˆ´ Average earning = 133 / 7   = Rs. 19   Rs. 19orrect Option: Rs. 19
<result>C</result>
The average earning of a mechanic for the first-four days of a week is Rs. 16 and for the last four days is Rs. 24. If he earns Rs . 27 on the fourth day, his average earning for the whole week is ?