What is the chemical name of Plaster of Paris?
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.
A number is such that when it is multiplied by 5, it gives another number which is as much above from 210 as the original number (itself) is below 210. ...
The average number of books on Biology, Chemistry, and Physics in a book shop is 300. Biology books are 150 more than the average number of Chemistry an...
The average age of a class of 22 girls is 18 years. If 2 new girls having average age of 12 years join the class, then the average age of the class beco...
Average of four numbers is 24. Sum of smallest and largest number is 53. If difference between other two numbers is 1, then find the square of second sm...
The average weight of a group of five persons, A, B, C, D, and E is 62 kg. If another person K joins the group then the average weight of the group is d...
The average of 30 numbers is 1.2. The average of the first 20 of them is 1.1 and that of the next 9 is 1. Then the last number is:
The average of the first and second numbers is 45, while the average of the second and third numbers is 55. If the sum of the first and third numbers is...
The average weight of 4 persons is 46 kg. The heaviest person’s weight is 28 kg more than the lightest person’s weight. If the average weight of the...
The average expenditure of a man for the first 6 month is Rs.6000 and for the next 6 months is Rs.8000. If he saves 12000 in that year then find his ave...
The average age of a group of persons going for tour to Shimla is 22 years. 30 new persons with an average age of 8 years join the group and their avera...
