chaossoldiermsc wrote:I WANT AN EXPLANATION!!!
Perhaps, instead of shouting in ignorance, if you were to ask in a manner consistent with your intelligence, it would be a pleasure to supply an explanation.
The full answer is as follows:
This is much like Student Ages question although a bit easier. You first must factor 72 which breaks down into 1x2x2x2x3x3. Combining these numbers to make 3 ages reveals 11 combinations: (1 2 36), (1 3 24), (1 4 18), (1 6 12), (1 8 9), (2 2 18), (2 3 12), (2 4 9), (2 6 6), (3 3 8), and (3 4 6).
The host says that their sum is equal to the house number of the guest. If the guest has to ask for more information then some of the combinations must add up to the same number. By adding up all of the combinations, we find that (2 6 6) and (3 3 8) both add up to 14 so the house number must be 14 and one of the combinations must be correct.
Then the host says that the oldest likes strawberry ice-cream which tells you that there is an oldest. Since (2 6 6) implies that two of his children have the same age, the answer must be (3 3 8).
So his oldest child is 8.
Now I am seriously impressed. Award yourself a Gold Star and the title of
Witch Finder General. However, before doing so the second part of the puzzle must be answered, and this is;
Four people are on one side of a bridge that they need to cross. It is dark, there are holes in the bridge surface, and they only have one flashlight which must travel with them as they cross. To add to their troubles, the bridge will only support two people at a time.
Now person #1 can walk cross in 1 minute.
Person #2 has a limp and can cross in 2 minutes.
Person #3 has a sprained ankle can cross in 5 minutes.
Person #4 has a cast on his leg and takes 10 minutes to cross.
No matter how fast a person can cross, he must wait for his companion. If #1 goes with #2, it takes 2 minutes for them to cross. If number #2 goes with #4, it takes them 10 minutes. The flashlight cannot be thrown, instead it must be carried and delivered from person to person. The 4 people are trying to make it across in the fastest possible time to make an important appointment in the next town.
What is the fastest time in minutes for them to cross the bridge
Have I asked this before?
There is a ship floating at anchor at low tide with a ladder over the side. The ladder has 10 rungs, each 1m apart. If at low tide 5 rungs are below the surface of the water, and the water rises at 1.5m per hour, then how many rungs of the ladder will be visible 2 1/2 hours later