if the 10th term of an ap is 52 and 17 th term is 20 more than its 13th term find ap
maira745gehlot:
anyone solve the question
Answers
Answered by
13
T10=a+9d
52=a+9d...(1)
T17=T13+20
a+16d=a+12d+20
4d=20
d=5
put value of d in ...(1)
52=a+45
a=7
A.P=a,a+d,a+2d...
=7,12,17....
Answered by
1
Answer:
Step-by-step explanation:
Given the 10'th term of an AP is 52 and its 17'th term is 20 more than its 13'th term
We have to find out,
The AP and its 30'th term
10'th term is 52 i.e. t₁₀ = a + 9d
a + 9d = 52 (given) -----[1]
its 17th term is 20 more than its 13th term
t₁₇ = 20 + t₁₃
⇒ a + 16d = 20 + a + 12d
⇒ 4d - 20 = 0
⇒ 4d = 20
⇒ d = 5
Substitute 'd' in [1]
We get,
⇒ a + 9d = 52
⇒ a + 45 = 52
⇒ a = 7
30'th term = a + 29d
7 + (29 * 5) = 152
Required answer:
AP = 7 , 12 , 17 , 22 , 27
Similar questions
Geography,
6 months ago
Science,
6 months ago
Social Sciences,
6 months ago
Accountancy,
11 months ago
English,
11 months ago
Science,
1 year ago