Answer:
The maximum remaining life span of Halley's Comet is 76 years
Explanation:
orbital period t= 76 years
Mass of comet M =100 million tons
Mass of material lost m=100 Millions tons
The maximum remaining life span of Halley's Comet is
[tex]L=\frac{M}{m} t\\L=\frac{100\times 10^6}{100\times 10^6} 76\\L=76 years[/tex]