CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

pth  term of the series (31n)+(32n)+(33n)+.... will be


Your Answer
A
(3+Pn)
Correct Answer
B
(3Pn)
Your Answer
C
(3+nP)
Your Answer
D
(3nP)

Solution

The correct option is B (3Pn)
Given series (31n)+(32n)+(33n)+.... (A.P.)

Therefore common difference

d = (32n)+(31n)=1n and first term a = (31n)
Now
pth term of the series = a + (p - 1)d = (31n)+(p1)(1n)=31n+1nPn=(3Pn).

Trick :  This question can also be done by inspection i.e. first 1n, second 2n, third 3n, therefore, pth will be Pn. Hence the result (3 is constant).

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image