Question 448 of 519MediumMCQ
If a1, a2, a3, ............... an are in A.P. and a1 + a4 + a7 + ........... + a16 = 114, then a1 + a6 + a11 + a16 is equal to :
Solutions · 1
Official solution
3(a1 + a16) = 114
a1+a16=38
Now a1 + a6 + a11 + a16 = 2(a1 + a16)
= 2 \times 38 = 76 Answer the question to unlock