Volume of sphere : 4/3*pi*r^3

Area of Trapezium :1/2*(sum of parallel sides) *height

After seeing the last three papers I was convinced that syllabus has not changed. In Urdu, poetry was given which wasn't mentioned in the syllabus this year so I expected GK paper would also appear in its conventional style. But when it comes to PPSC you never know. 90% of the paper was science-related and all the time I stick to newspaper. Nevertheless being an engineer proved fruitful today.