How do you cross the bridge in 17 minutes riddle?
The bridge is weak and only able to carry the weight of two of them at a time. Because they are in a rush and the light is fading they must cross in the minimum time possible and must carry a torch (flashlight,) on each crossing. They only have one torch and it can’t be thrown.
How do you solve a bridge problem?
Solution: They must cross the bridge in the following way:
- Step 1: A and B cross the bridge. A comes back. Time taken 3 minutes. Now B is on the other side.
- Step 2: C and D cross the bridge. B comes back. Time taken 8 + 2 = 10 minutes.
- Step 3: A and B cross the bridge. Time taken is 2 minutes. All are on the other side.
How do you do the bridge Riddle?
Person A can cross the bridge in 1 minute, B in 2 minutes, C in 5 minutes, and D in 8 minutes. When two people cross the bridge together, they must move at the slower person’s pace. The question is, can they all get across the bridge if the torch lasts only 15 minutes?
How do you solve the counterfeit coin riddle?
For the THIRD weighing, put coin 10 on the left and coin 11 on the right. If the scale is lower/heavier on the left, coin 10 is the counterfeit coin. If the scale is lower/heavier on the right, coin 11 is counterfeit coin. If the scale is balanced, coin 9 is the counterfeit coin.
What qualifies as counterfeit money?
Counterfeit money is currency produced without the legal sanction of the State or government, usually in a deliberate attempt to imitate that currency and so as to deceive its recipient. Producing or using counterfeit money is a form of fraud or forgery, and is illegal.
How many people need to cross a bridge in 17 minutes?
22 saves Question: Four people need to cross a bridge in 17 minutes in the middle of the night. The bridge can only hold two or less people at any time and they only have one flashlight so they must travel together (or alone). The flashlight can only travel with a person so every time it crosses the bridge it must be carried back.
How long does it take Tom to cross the bridge?
Tom can cross in 1 minute, John can cross in 2 minutes, Sally can cross in 5 minutes, and Connor can cross in 10 minutes. If two people cross together they go as fast as the slower person.How can they cross the bridge in 17 minutes or less? Answer: First Tom and John will cross (2 minutes). Then Tom will bring the flashlight back (1 minute).
How long does it take to cross the bridge with the flashlight?
The flashlight can only travel with a person so every time it crosses the bridge it must be carried back. Tom can cross in 1 minute, John can cross in 2 minutes, Sally can cross in 5 minutes, and Connor can cross in 10 minutes.