# Question #cff1c

May 4, 2017

32 days =4x8 days, so it means 4 halvings.

#### Explanation:

$\frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} \times \frac{1}{2} = \frac{1}{16}$

So the remaining part will be:

$\frac{1}{16} \times 0.0024 g = 0.00015 g$

Note:
If we had used the metric prefixes, it would have been a bit easier (without all the zeroes):

$0.0024 g = 2.4 m g \to \frac{1}{16} \times 2.4 m g = 0.15 m g$