PPSC lecturer Math Paper 2020
PPSC lecturer Math Paper 2020 for preparation. A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream is 4 km/hr, find the time taken by the boat to go 68 km downstream? A) 2 hours B) 3 hours C) 4 hours D) 6 hoursSolution The selling … Read more