1370 , 1320 , 1070 , -180 ?
Options
A) -6430
B) -6530
C) -6630
D) -6730
E) -6830
1370,1320,1070,-180,?   1370-50*(5^0)=1320   1320-50*(5^1)=1070   1070-50*(5^2)=-180   -180-50*(5^3)=-6430   -6430NSWER:-6430.
<result>A</result>
1370 , 1320 , 1070 , -180 ?