If the numerical value of the perimeter of an equilateral triangle is √3 times the area of it, then the length of each side of the triangle is:

The average marks obtained by Saloni in four papers is 51, and in the fifth paper she gets 56 marks. Find her new average in all five papers.

An alloy contains a mixture of two metals X and Y in the ratio of 2 : 3. The second alloy contains a mixture of the same metals, X and Y. in the ratio 7 : 3. In what ratio should the first and the second alloys be mixed so as to make a new alloy containing 50% of metal X?

Divide 32 into two parts such that the sum of the square of the parts is 674 what is the value of the parts? 

In a certain school, the ratio of boys to girls is 7 : 5. If there are 2400 students in the school, then how many girls are there?

Which two expenditures together have a central angle of 108°?

Working for 10 hours per day, 6 men can build a wall in a certain number of days. By working for how many hours/minutes per day can 12 men build the wall in the same days?

If a=34, b=c=33, then the value of a3+b3+c3-3abc is