A can do th of a work in 4 days and B can do th of the same work in 5 days. In how many days they can finish the work, if they work together?
The lengths of one side of a rhombus and one of the two diagonals are 6 cm each. Find the area of the rhombus (in ).
The area of a rhombus is and the length of one of its diagonals is 8 m. The length of each side of the rhombus will be:
The table below shows that employees in an office , sorted according to their age. Find the median:
Age | Number of workers |
25 - 30 | 4 |
30 - 35 | 7 |
35 - 40 | 8 |
40 - 45 | 10 |
45 - 50 | 9 |
50 -55 | 8 |
Total | 46 |