find the sum of ap 5+8+11.... 10 terms
Answers
Answered by
1
Answer:
185
Step-by-step explanation:
a= 5
d = 8-5 = 3
n = 10
S = n/2(2a+(n-1)d)
= 10/2(2*5+(10-1)*3)
= 5*(10+27)
= 5*37
= 185
Answered by
0
Answer:
185
Step-by-step explanation:
a=5
d=3
now
n=10
s10=(n/2) x (2a+(n-1)d)
= (10/2) x (2x5+(10-1)x3)
= 5x(10+30-3)
=5x(37)
s10=185
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