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If you have 8 bags of gold and one weighs less than the others what is the quickest way to find the lightest bag using a pan balance scale?
Assuming the heavier bags are all of identical weight, this can be done in three weighings, eliminating half of the bags each time.
Thus the first weighing compares the bags in two sets of four, and reduces the field to four possible bags.
The second weighing compares these in two sets of two, to identify two possible bags.
The third and final weighing compares these two remaining bags, determining which is in fact underweight.
It can be done in 2 weighings
The first weighing compares 3 and 3.
If the 3 and 3 are equal, you weigh the two originally left out and will get your answer.
If the 3 and 3 are not equal you take the set of 3 that are lighter and weigh 1 and 1, leaving one out. If this weighing is unequal you'll know which bag is lighter. If the weighing is equal then the one you left out is the lightest.
What else can I help you with?
What does equal-arm balance mean?
it is a weighing tool that has two pans and you can put something on both of the pans if u want to see which weighs more
A pail with 40 washers in it weighs 500 grams the same pail with 20 washers in it weighs 420 grams how much does the pail weigh?
340 grams
How much heavier is a half-dollar coin than a dollar coin?
A half dollar coin weighs 11.34 grams and a dollar coin weighs 8.1 grams so if you use subtraction then the answer would be 3.33.
How many liters are 1 tone?
Depends. 1000 liters of water (standard temperature pressure) weighs one metric ton (1000 kg). On the other hand, about ten thousand liters of dry, uncompressed adult diapers weighs one metric ton.
If a person catches a fish that weighs 5 pounds plus half its weight how much does the fish weigh?
Call the unknown weight of the fish "x". In that case, the statement can be converted into an equation as follows:x = 5 + (1/2)x If you solve this for "x", you get the weight of the fish. (The answer is 10 pounds.)
How much does the lightest dog wiegh?
The lightest dog breed is probably the Chihuahua, which typically weighs between 2-6 pounds.
What is lightest species o mammal?
Shrews, an adult weighs about 2 grams.
Which sport use the lightest ball?
Table tennis ... the ball weighs 2.5 grams (0.88 ounces).
Which brand trimmer is the lightest weight?
Redmax makes the lightest trimmers.The 2300 weighs just under 9 pounds.Husqvarna makes a slightly heavier model.
What is lightest Cessna weight?
I believe that would be the Cessna 150 which weighs in about 980 pounds
How much does the lightest semi truck weigh?
The lightest semi tractor weighs about 13,900 pounds dry weight. These are usually for fairly light hauling with shorter trailers and distances. The lightest ones are made by International and Peterbuilt.
The Apple Macbook Air the thinnest and lightest laptop computer weighs pounds?
3.0 Lbs
Which is the Lightest aircraft in the world?
DHC-6 Twin Otter
What is the lightest car in the world?
The Renault Twizzy is the lightest production car in the world. It weighs just 474 kilograms and has an electric motor. It has the performance specifications of a 125cc scooter.
What is the weight of your lightest portable grill?
The Weber Q-100 is the lightest portable grill on the market right now with the highest quality. It weighs 29 pounds and is very manageable at that weight.
What is the quickest and safest way to lose weight for someone who is 5'3 and weighs 183?
excercise and diet
How much does Batman weigh?
Without his suit, he weighs around 180lbs and with his suit on he weighs around 200lbs i think. At his lightest, around 210Ibs. At his heaviest, around 230Ibs.
