the sum of 7th and 23rd term of A.P. is equal to the sum of 8th , 15th and 13 th term . find the term which is 0 Choose one:
A) 6 B) 8 C) 10 D) 12 E) 14
t7 + t23 = t8 + t15 + t13   =&gt; a+6d + a+22d = a+7d + a+14d + a+12d   =&gt; a +5d = 0   =&gt; t6= 0 i.e. 6th term is zero.   6NSWER: 6
<result>A</result>
the sum of 7th and 23rd term of A.P. is equal to the sum of 8th , 15th and 13 th term . find the term which is 0