In an A.P. the first term is 2, and the sum of the 1st and the 6th term is 16\(\frac{1}{2}\). What is the 4th term
a
12
b
91/2
c
8
d
7
e
51/2
Explanation
Correct Option
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Discussions (4)
Pmiller
12 years ago
in the question the sum of the first a and 6th a+(6-1)d term is 6.5 not 16.5. so a+a+5d=13/2 when a=2. 2+2+5d=13/2.(when multiplying through by 2) 8+10d=13. 10d=5. d=1/2. fourth term a+(4-1)d. 2+3(1/2) ans = 7/2
Tim234D
1 year ago
Greetings, The Myschool Team.
The question at present is ambiguously written. From the explanation, the 6th term is 16½; however, it was written as 161/2. This creates confusion. Please the fraction should be written in a more clear way. Thank you.
