Question

Choose the correct option from the given alternatives:

The decay rate of certain substances is directly proportional to the amount present at that instant. Initially there are 27 grams of substance and 3 hours later it is found that 8 grams left. The amount left after one more hour is

Options

• `5 2/3` grams

• `5 1/3` grams

• 5.1 grams

• 5 grams

Answer 1

`5 1/3` grams