My question is: John buys 3 different coolers. The first one is 100 liters. The second is 50% bigger than that and the third is half the size of the second. How much total water can they hold? Your thoughts:
The second cooler is 100 * .5 = 50 liters bigger than the first. So it is 100 + 50 = 150 liters. The third is 150 / 2 = 75 liters. So the total water they can hold is 100 + 150 + 75 = 325 liters. The final answer: 325.