Question

The sum of the first five terms of a AP and the sum of the first seven terms of the same
AP is 167. If the sum of the first ten terms of this AP is 235, find the sum of its first
twenty terms.
ne eight term of an AP is half its second term and the eleventh term exceeds one-third
of its fourth term by 1. Find the 15th term.
44. Find the sum of the integers between 100 and 200 that are divisible by 9
45. The ratio of the 11th term to the 18th term of an AP 2:3. Finds the ratio of the 5th term
to the 21th term and also the ratio of the sum of the first five terns to the sum of the
first 21 terms.
46. JaspalSingh repays his total loan of Rs118000 by paying every month starting with the
first installment of Rs 1000. If he increases the installment byRs 100 every month, what
amount will be paid by him in the 30th installment? What amount of loan does he still
have to pay after the 30th installment?
A7 Farther 3 1 1 3
47. For the AP: - - --...,Write the first term a and the common difference d.
2
2
48. Write four terms of the AP, when the first term a and the common difference d is given
as follows: a=10, d=10.
49. Find the 10th term of the AP: 2, 7, 12 .........
50. Determine the AP whose 3rd term is 5 and the 7th term is 9.
51. Determine the AP whose third term is 16 and the 7th term Exceeds the 5th term by 12.
52. Find the 20th term from the last term of the AP:3,8,13..........253.
53. The sum of the 4th and 8th terms of an AP is 24 and the sum of the 6th and terms is 44.
Find the first three terms of the AP
54. If the sum of the first n terms of an AP is 4n-n2, what is the first term (that is $1)? What
is the sum of first two terms? What are the second terms? Similarly, find the 3rd, 10th
and the nth terms.

Solve Qno.42,43,45,46,53,54
Please solve it's urgent​

Answer 1

Answer:

10,20,30,40

Step-by-step explanation:

Ans. 48

a=10

d=10

Then, the first 4 terms will be 10,20,30,40