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Find the sum of the following APs. 0.6, 1.7, 2.8 ,…….., to 100 terms - CBSE Class 10 - Mathematics

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Question

Find the sum of the following APs.

0.6, 1.7, 2.8 ,…….., to 100 terms 

Solution

0.6, 1.7, 2.8 ,…, to 100 terms

For this A.P.,

a = 0.6

d = a2 − a1 = 1.7 − 0.6 = 1.1

n = 100

We know that

Sn = `n/2[2a+(n-1)d]`

S100 = `100/2[2(0.6)+(100 - 1)1.1]`

= 50[1.2+(99)x(1.1)]

=50[1.2+108.9]

=50[110.1]

=5505

  Is there an error in this question or solution?

APPEARS IN

 NCERT Solution for Mathematics Textbook for Class 10 (2019 to Current)
Chapter 5: Arithmetic Progressions
Ex. 5.30 | Q: 1.3 | Page no. 112
Solution Find the sum of the following APs. 0.6, 1.7, 2.8 ,…….., to 100 terms Concept: Sum of First n Terms of an AP.
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