Sum of first n terms of an arithmetic sequence is 5n²+2n. What is the 21st term of this sequence?
A102
B107
C202
D207
A102
B107
C202
D207
Related Questions:
The runs scored by a cricket batsman in 8 matches are given below.
35, 48, 63, 76, 92, 17, 33, 54
The median score is: