The average marks of Ravi in five subjects are 150, but in mathematics 43 was misread as 23 during the calculation. The correct average is: |
150 154 148 160 |
154 |
Net Increase in marks due to wrong written = 43 - 23 = 20 Increase in average = \(\frac{20}{5}\) = 4 New average = 150 + 4 = 154 |