(B) The formula for the $n^{th}$ term of an $AP$ is $a_{n} = a + (n - 1)d$.Given values are $a = -7.2$,$d = 3.6$,and $a_{n} = 7.2$.Substituting these

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(B) The formula for the $n^{th}$ term of an $AP$ is $a_{n} = a + (n - 1)d$.Given values are $a = -7.2$,$d = 3.6$,and $a_{n} = 7.2$.Substituting these values into the formula:$7.2 = -7.2 + (n - 1)(3.6)$Adding $7.2$ to both sides:$7.2 + 7.2 = (n - 1)(3.6)$$14.4 = (n - 1)(3.6)$Dividing both sides by $3.6$:$\frac{14.4}{3.6} = n - 1$$4 = n - 1$$n = 4 + 1$$n = 5$

Class 10 Mathematics Arithmetic Progressions nth Term of an AP

Easy

In an $AP$ if $a = -7.2, d = 3.6, a_{n} = 7.2,$ then $n$ is

A
$1$
B
$5$
C
$3$
D
$4$

Explore More

Browse All

Question Bank

All Subjects

Class 10 Questions

Class 10

Mathematics Questions

Chapter

Arithmetic Progressions

Subtopic

nth Term of an AP

In the following arithmetic progression $(AP)$,find the missing terms in the boxes: $\square, 13, \square, 3$.

Medium

View Solution

Find the $31^{st}$ term of an $AP$ whose $11^{th}$ term is $38$ and the $16^{th}$ term is $73.$

Difficult

View Solution

Which term of the $AP: 3, 15, 27, 39, \ldots$ will be $132$ more than its $54^{th}$ term?

Difficult

View Solution

Write the first four terms of the $AP,$ when the first term $a$ and the common difference $d$ are given as follows: $a = 10, d = 10.$

Medium

View Solution

In the following $APs,$ find the missing terms in the boxes: $\square, 38, \square, \square, \square, -22$

Difficult

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

In an $AP$ if $a = -7.2, d = 3.6, a_{n} = 7.2,$ then $n$ is

Similar Questions

In the following arithmetic progression $(AP)$,find the missing terms in the boxes: $\square, 13, \square, 3$.

Find the $31^{st}$ term of an $AP$ whose $11^{th}$ term is $38$ and the $16^{th}$ term is $73.$

Which term of the $AP: 3, 15, 27, 39, \ldots$ will be $132$ more than its $54^{th}$ term?

Write the first four terms of the $AP,$ when the first term $a$ and the common difference $d$ are given as follows: $a = 10, d = 10.$

In the following $APs,$ find the missing terms in the boxes: $\square, 38, \square, \square, \square, -22$

Vedclass Test Series

Exam Paper Generator

Online Exam Module