find the 15th term of the a.p 5,10,15,20.....
Answers
Answered by
5
Answer:
a= 5, d= 10-5=5 n= 15th term
Tn = a+(n-1)d
5+(15-1)10
= 5+16*10
= 5+160
= 165
Answered by
0
Answer:
75
Step-by-step explanation:
n=15,d=5,a=5.
t=a+(n-1)d
t=5+(15-1)5
t=5+14*5
t=5+70
t=75
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