MEDIUM
10th CBSE
IMPORTANT
Earn 100

The sum of the first 7 terms of an A.P. is 63 and the sum of its next 7 terms is 161. Find the 28th term of this A.P.

Important Questions on Arithmetic Progression

MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 31
The sum of first seven terms of an A.P. is 182. If its 4th and the 17th terms are in the ratio 1:5, find the A.P.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 32
The nth term of an A.P. is given by (-4n+15). Find the sum of first 20 terms of this A.P.
HARD
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 33
In an A.P., the sum of first ten terms is -150 and the sum of its next ten terms is -550. Find the A.P.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 34
Sum of the first 14 terms of an A.P. is 1505 and its first term is 10. Find its 25th term.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 35
In an AP, the first term is 2, the last term is 29 and the sum of the terms is 155. Find the common difference of the AP.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 36
The first and last term of an A.P. are 17 and 350 respectively. If the common difference is 9, how many terms are there and what is their sum?
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 37
Find the number of terms of the A.P. -12, -9, -6,......, 21. If 1 is added to each term of this A.P., then find the sum of all terms of the A.P. thus obtained.
MEDIUM
10th CBSE
IMPORTANT
MATHEMATICS CLASS X>Chapter 5 - Arithmetic Progression>EXERCISE 5.6>Q 38
The sum of the first n terms of an A.P. is 3n2+6n. Find the nth term of this A.P