Q. 7 C4.5( 2 Votes )

# Which term of A.P. 3, 8, 13, 18, ... is 88?

Here, a = 3, d = 8 – 3 = 5 and an = 88

To find : n

We have,

an = a + (n – 1)d

88 = 3 + (n – 1) × (5)

88 = 3 + 5n – 5

88 = –2 + 5n

88 + 2 = 5n

90 = 5n

n = 18

Therefore, the 18th term of the given AP is 88.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Arithmetic Progression34 mins
Champ Quiz | Arithmetic Progression30 mins
Lets Check Your Knowledge in A.P.49 mins
Fundamental Theorem of Arithmetic- 143 mins
NCERT | Fundamental Theorem Of Arithmetic45 mins
Quiz on Arithmetic Progression Quiz32 mins
Arithmetic progression: Previous Year NTSE Questions34 mins
Get to Know About Geometric Progression41 mins
NCERT | Solving Questions on Introduction of A.P42 mins
Arithmetic Progression Tricks and QUIZ37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses