{[(54.36×0.4)+0.256]÷\(\sqrt{121}\)} equals:
The given table shows the number of people of various age groups visiting a park in a locality. Find the modal age (in years) of visitors (rounded off to one decimal place).
| Age (years) | Number of persons |
| 0 - 10 | 4 |
| 10 - 20 | 14 |
| 20 - 30 | 18 |
| 30 - 40 | 23 |
| 40 - 50 | 27 |
| 50 - 60 | 16 |
| 60 - 70 | 8 |
In the given figure, l1 is parallel l2 and p is their transversal with angle 4 = 5x + 35 and angle 7 = 45°. Find the value of x.