KCSE MATHEMATICS QUESTIONS AND ANSWERS ON COMPOUND PROPORTIONS FORM 3 LEVEL

KCSE MATHEMATICS QUESTIONS AND ANSWERS ON COMPOUND PROPORTIONS FORM 3 LEVEL: An inlet pipe fills an empty water tank in 8 hours while an outlet pipe empties the full tank in 5 hours. When the tank is full, the inlet and outlet pipes are opened at the same time. Calculate: (a) the fraction of the tank that is emptied in 1 hour; (2