John raises emu. He has 4 pens for emu and each pen has 6 emus in it. Each female emu lays 1 egg per day. If half the emu are females how many eggs does he get a week? Think carefully first, then make a decision:
There are 6 * 4 = 24 emus. So there are 24 / 2 = 12 female emus. So he gets 12 * 7 = 84 eggs a week. So, the answer is 84.