In one exam, Wang Ming scored an average of 75 points in Chinese mathematics, 90 points in mathematical English and 82.5 points in Chinese English. What's Wang Ming's English score? calculate
Chinese+Mathematics =75*2= 150
Math+English =90*2= 180
Chinese+English =82.5*2= 165
It can be seen that the total score of the three items = (150+180+165)/2 = 75+90+82.5 = 247.5.
Subtract the first item to get English score =247.5- 150=97.5.