Question

Let the mumbers ( b_{x} quad a-3 d, a-d, a+d, a+3 d ).
[
begin{array}{r}
text { Sum is }-5 u quad geqslant quad 4 a=-54
a=-13.5
(a-3 d+a+d)=-30
end{array}
]
S) ( 2(a)-2 d=-30 )
7) ( +27+2(d)=730 ) ( 2 d=3 )
( d=1.5 )
( therefore )
The four nos an -18,-15,-12,-9

# - Find four consecutive terms in an AP whose sum is $4 and the sum of "and 3 term is 30

Solution