A radioactive substance has an initial mass of 160 g and decays by half every 8 days
MATHEMATICS · Single correct · CBSE · Mathematics · Power Play · Power Play
Problem
A radioactive substance has an initial mass of 160 g and decays by half every 8 days. Determine the minimum number of days required for the mass to become less than or equal to 20 g.
(a) 16days
(b) 24days
(c) 28days
(d) 32days