Answers

2016-03-18T08:18:07+05:30
The AP will be 10,13,.....94
by substituting 94 in a+(n-1)d,we will get n=29
therefore the middle term will be 15th term =52
sum of terms up to  middle term=15/2[2*10+14*3]=465
if we take the AP in reverse order then 94,91....10
sum of up to middle term=15/2[52+94]=1095
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