Answer :
Amount remaining = (original amount) x (2)^-(years/1660)
Amount remaining = (200) x (2)^-(500/1660)
= (200) x (2)^-(0.3012)
= (200) x (0.8116) = 162.3 grams (rounded)
Amount remaining = (200) x (2)^-(500/1660)
= (200) x (2)^-(0.3012)
= (200) x (0.8116) = 162.3 grams (rounded)