A=(1−110)+(1−140)+(1−188)+...+(1−11120)A=(1-110)+(1-140)+(1-188)+...+(1-11120)
A=1−(110+140+188+...+11120)A=1-(110+140+188+...+11120)
A=1−(12.5+15.8+18.11+...+132.35)A=1-(12.5+15.8+18.11+...+132.35)
A=1−[13(32.5+35.8+38.11+...+332.35)]A=1-[13(32.5+35.8+38.11+...+332.35)]
A=1−[13(12−135)]A=1-[13(12-135)]
A=1−1170A=1-1170
A=59/70