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you are given three piles of 10 pesos coins. one pile is made up of counterfeit coins heavier than the genuine ones. explain how can pick out the pile of counterfeit coins in one step procedure using an equal arm balance
Counterfeit quarters
4 coins, 3 in a triangle (use your imagination) and the other on top in the centre
if the question allows you to use a scale once, use it in one of 2 ways. 1. Put all stacks of coins on the scale and remove 1 stack at a time, when the weight reaches the the correct amount for the number of stacks are on the scale then then counterfeit has been removed. 2. take 1 coin from stack 1, 2 coins from stack 2, etc. when looking at the numbers if each coin weights, lets say, 1 ounce, and stack 3 is the problem, the scale will read 3 ounces too many. If you can't use a scale, then sorry, your out of luck.
The idea is that the counterfeit coin is lighter than the others, but not different enough to find by hand.Divide the coins into 3 groups of 3. Reserve one group and put the other two groups onto the balance scale.If they are the same, the counterfeit is one of the reserved group. Otherwise, the lighter pan has the counterfeit.Put one coin on each side of the scale and keep one off. If they are the same, the one not weighed is the counterfeit. Otherwise it is the lighter one.
4 weighting
In the minimum coin change problem using dynamic programming, the minimum number of coins required to make a given amount of change is calculated by finding the optimal combination of coins that add up to that amount. This involves breaking down the problem into subproblems and finding the minimum number of coins needed for each subproblem. The final answer is the minimum number of coins needed to make the given amount of change.
Counterfeit coins and bills are often sold on eBay. You can also buy copies. Note: It is illegal to sell or pass counterfeit coins or bills
I think it's 0.35 cents. is that correct, perhaps?
you are given three piles of 10 pesos coins. one pile is made up of counterfeit coins heavier than the genuine ones. explain how can pick out the pile of counterfeit coins in one step procedure using an equal arm balance
The details of the method depend on -- How many coins are there in the whole pile ? -- How many of those are counterfeit ? -- Are counterfeit coins heavier or lighter than genuine coins, or is that not known ?
It depends, many low quality counterfeit coins are simply made in lead and would be essentially worthless, but a few high-quality counterfeit coins are actually made out of silver and would be worth the silver value.
$1
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Counterfeit quarters
4 coins, 3 in a triangle (use your imagination) and the other on top in the centre
I think it's 0.35 cents. is that correct, perhaps?