CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

The 20th term of the series 2×4+4×6+6×8+......... will be



Your Answer
A

1600

Correct Answer
B

1680

Your Answer
C

420

Your Answer
D

840


Solution

The correct option is B

1680


The given series 2×4+4×6+6×8+......... nth terms

Tn = 2n.2(n+1) = 4n(n+1)

Putting n = 20, we get T20 = 4.20(20 + 1) = 1680

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image