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Arithmetic Progressions | Arithmetic Progressions - Exercise 5.2

Question 23

30th term of the A.P: 10, 7, 4, …, is

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Given here,

A.P. = 10, 7, 4, …

Therefore, we can find,

First term, a = 10

Common difference, d = a2 − a= 7−10 = −3

As we know, for an A.P.,

an = a +(n−1)d

Putting the values;

a30 = 10+(30−1)(−3)

a30 = 10+(29)(−3)

a30 = 10−87 = −77

Hence, the correct answer is option C.

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subject-cta

Question 23

30th term of the A.P: 10, 7, 4, …, is

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Given here,

A.P. = 10, 7, 4, …

Therefore, we can find,

First term, a = 10

Common difference, d = a2 − a= 7−10 = −3

As we know, for an A.P.,

an = a +(n−1)d

Putting the values;

a30 = 10+(30−1)(−3)

a30 = 10+(29)(−3)

a30 = 10−87 = −77

Hence, the correct answer is option C.

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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