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Archimedes principle : • It states that a body when wholly or partially immersed in liquid experiences an upward thrust which is equal to the volume of the liquid. • Archimedes Principle is also known as the physical law of buoyancy. • Purity of gold in the king's crown, Archimedes determine after discovering the Archimedes principle. • Hydrometer, Ships, and Submarines work on the Archimedes Principle. • A Ship/boat floats on the basis of the Archimedes Principle.
The average of 10 numbers is 30. If one of the numbers is excluded, the average of the remaining numbers becomes 28. Find the excluded number.
The average of 25, 46, and ‘y’ is 28. What is the value of ‘y’?
The average of 25 numbers is 22.The average of first 12 numbers is 14 and that of the last 12 numbers is 17. What will be the 25th number?