CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 4
4. How many terms of the AP: 9, 17, 25, … must be taken to give a sum of 636?
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CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 4
4. How many terms of the AP: 9, 17, 25, … must be taken to give a sum of 636?
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 3
3. In an AP
(i) given
, find n and
.
(ii) given
, find d and
.
(iii) given
, find a and
.
(iv) given
,
, find d and
.
(v) given
, find a and
.
(vi) given
, find n and
.
(vii) given
, find n and d.
(viii) given
, find n and a.
(ix) given
, find d.
(x) given
, and there are total of 9 terms. Find a.
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 2
2. Find the sums given below:
(i)
(ii)
(iii) -5 + (-8) + (-11) + …. + (-230)
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.3 Question 1
1. Find the sum of the following AP’s.
(i) 2, 7, 12, …, to 10 terms (ii) -37, -33, -29, …. to 12 terms
(iii) 0.6, 1.7, 2.8, ….. to 100 terms (iv)
… to 11 terms.
CBSE NCERT Solutions Chapter 5 Arithmetic Progressions Exercise 5.2 Question 20
20. Ramkali saved Rs. 5 in the first week of a year and then increased her weekly savings by Rs. 1.75. If in the nth week , her weekly savings become Rs 20.75, find n.