If 3+5+7+........+n terms5+8+11+........+10 terms=7, the value of n is
35
36
37
40
LHS=n(n+2)5.37=7 ∴n(n+2)=35.37 Above equation will hold when n=35
If 3+5+7+......n terms5+8+11+.........+10 terms = 7, the value of n is: