D sits three places away from O who sits second to the right of C
A sits second to the left of T. Neither O nor D is an immediate neighbour of T. so case-1 is eliminated
The number of persons who sit between L and O is one less than the number of persons who sit between G and J when counted from the right of G and L. L doesn’t sit next to O.
The average of 14, 57, and z is 40. What is the value of z?
The average of 18 numbers is 36. If 4 is added to each number, then the new average will be:
The average score of 10 students in a test is 85. If the average of the top 4 scores is 92.5, what is the average score of the other 6 students?