Marlon had 30 female baby bunnies in his hutch. They matured after four months, and he gave 2/5 of them to his friend Rodney. If after another three months the bunnies conceived and gave birth to 2 kittens each, calculate the total number of bunnies Marlon has in his hutch now. Let's think first. Chain of thought:
When he gave Rodney 2 / 5 of the bunnies, he gave away 2 / 5 * 30 = 12 bunnies. He remained with 30 - 12 = 18 bunnies. When the bunnies gave birth to two kittens each, the total number of kittens born is 18 * 2 = 36. In total, Marlon now has 36 + 18 = 54 bunnies.
Therefore, the answer is 54.