Question
What is the chemical name of Plaster of
Paris?Solution
Plaster of Paris is chemically known as calcium sulfate hemihydrate. It is used in construction, art, and medical applications due to its ability to harden quickly when mixed with water.
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The average of 18 numbers is 36. If 4 is added to each number, then the new average will be:
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Out of 6 numbers, the sum of the first 5 numbers is 7 times the number. If their average is 136, then the 6th number is:
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