find the 31st termof an A. p whose 11th term is 38 and 16th term is 73
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1
Answer:
178
Step-by-step explanation:
a11=38
a16=73
We know a+(n-1)d=an
a+10d=38
a+15d=73
If u subtract the equation You will get
5d=73-38
5d=35
d=7
Putting in 1st equation
a+70=38
a=38-70
a=-32
a31=a+30d
= -32+210
= 178
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