Share

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

ConceptSum of First n Terms of an AP

#### 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

#### Video TutorialsVIEW ALL [5]

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.
S