Asked by meee

neema did y tests and scored a total of 120 marks. she did two more tests which she scored 14 and 13 marks. the means score of the first y test was 3 marks more than the means score for all the tests she did. finds the total number of tests she did.
Answered by oobleck
120/y = 3+(120+13+14)/(y+2)
y = 5