Question 31624
SUM OF A G.P.TO INFINITE TERMS,WHERE COMMON RATIO IS LESS THAN 1 IS GIVEN BY
S=A/(1-R)...WHERE A IS FIRST TERM AND R = C.R.
HERE A=16 AND R = -4/16=-1/4
S=16/(1+1/4)=16/(5/4)=16*4/5=64/5