Solve
1. The begetter is xxx years older than his son. In 12 years he volition hold upwardly iii times every mo one-time every mo his son. Find their acquaint age.
2. H5N1 publish when added to its 1 4th gives 40. Find the number.
3. Find ii consecutive positive fifty-fifty integers whose heart in addition to individual is 66.
4. In a course of report of 92 students 3/4 are boys in addition to residual are girls. Find the publish of boys in addition to girls.
5. The sides of a triangle taken inwards social club are each 4 cm longer than the preceding side. If the perimeter of triangle is sixty cm, in addition to thence detect the sides of the triangle.
