If the 3rd and 7th terms of an a.p. are 17 and 27 respectively, then the first term of the a.p is
A)9 B)12 C)14 B)16
Answers
Answered by
9
The First Term of An A.p is 12
Answered by
13
Answer:
17= a +2d. (1)
27= a +6d. (2)
(2)-(i)
-10=--4d
d: 10/4 = 5/2
17=a+2d
17=a+5
a=12
Ans(B) 12
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