A) 33
B) 31
C) 32
D) 30
Correct Answer: C
Solution :
Series after the insertion of terms between 4 and 39 is 4, \[{{a}_{1}},{{a}_{2}},{{a}_{3}},{{a}_{4}},39\] Now, \[39=4+5d\] \[\Rightarrow \] \[35=5d\] \[\Rightarrow \] \[d=7\] \[\therefore \] \[{{a}_{4}}=4+4\times 7=32\]You need to login to perform this action.
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