Question

10. The mean score of Jayant in three tests is
46 points. How many points must he score in
the fourth test so that the mean score of the
four tests is 50 points?​

Answer 1

Answer:

X1+X2+X3= 46(3)

X1+X2+X3+X4/ 4 = 50

X1+X2+X3+X4= 200

X5= 200-46(3) = 200-138= 62

Score in fifth test = 62 marks