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If you are given that you can use only four different weights to measure all whole number weights lying between 1 and 80 including both then what would be those weights?
Wiki User
∙ 15y ago
7 8 9 52 ************* The above answer (7, 8, 9, 52) is wrong because you can not measure for example 80 kg (since 7+8+9+52=76), nor 79 kg, 78 kg and so on. Actually, using a two disc balance and four weights (1, 3, 9, and 27) , you can ONLY measure from 1 to 40 kg (increase by 1) Using a two disc balance and FIVE weights (1, 3, 9, 27 and 81) , you can measure up to 121 kg. Ifyou want to measure up to 80 kg with four weight, you should either start from a number higher than 1, or increase the numbers by 2.
Wiki User
∙ 15y ago
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What are the five different weights whose sum is 40 kilograms and that enable you to measure any weigh between 1 kilogram and forty kilograms using a balance?
You need only 4 weights and these are 1, 3, 9 and 27 kg.
If you have to measure weight using a simple 2 pan scale You can place weights on both side and you need to measure all weights between 1 and 250?
you need just 6 weights... 1, 3, 5, 29, 81 and 243
Why would it be a bad idea to measure and compare the weights of the doughs?
because there is a different amount of air in them.
Instruments used to measure metric?
"Metric" is a whole system of weights and measurements. Many different devices are used to measure things in the system.
How many pounds in 1L?
Pounds measure weight, and liters measure volume, so they do not have a fixed ratio. You need to know what liquid you are measuring, as different liquids have different weights and densities.
What are the four different weights whose sum is 40 kilograms and that enable you to measure any weigh between 1 kilogram and forty kilograms using a balance?
1, 3, 9 and 27 kg.
You have four weights and each one of them can be of any value between 1kg to 40kgs in such a combination that you can measure anything starting from 1kg to 40kgs What are the values of my weights?
1, 3, 9, 27
What does a liter equal to?
A litre is about 1.056688 US quarts. A litre, which is a measure of volume can be converted to other volume measures, but a litre of different substances will have different weights owing to different densities.
Why does the scientific community use the metric system?
The metric system has become the standard throughout the world to avoid problems converting between the several historic weights and measure used by different countries.
Why do motor oils come in different weights?
Different applications and engines require different weights of oil to operate properly and prevent engine wear. Therefore different weights of oil are produced.
How much does change weigh?
Different amounts of change have different weights. This is because different coins have different weights and will produce different readings.
Why do you need standars unit?
to measure weights and measures.
