The still of boat in skill water is 7.5 km/h. If the speed of stream is 2.5 km/h, then find the time taken to go a distance of 15km and come back to starting point. 4.5 3 4 5 3.5 Option A Speed of boat = 7.5km/h speed of stream =2.5km/h downstream speed of boat = 7.5+2.5 =10km/h.Upstream speed of…
Read More
A boat running downstream covers a distance of 36 km in 4 hrs and for covering the same distance upstream it takes 9 hrs. What is the speed of the stream? 2.5 km/hr 3 km/hr 4.5 km/hr 5 km/hr None of these Option A Downstream speed = 36/4 = 9 km/hrUpstream speed = 36/9 = 4 km/hrSo, speed of stream…
Read MoreA boat takes half time in moving a certain distance downstream than upstream. What is the ratio between rate of boat in still water and rate of current? 2:3 3:1 2:1 3:5 None Option B Solution: Let the distance be xkm. Then 2x/(u+v) = x/ (u-v) 2u – 2v = u+v u:v=3:1. A boat covers a certain distance downstream in…
Read MoreBoats and Streams Questions for IBPS PO, IBPS Clerk, IBPS RRB, SBI, LIC, IPPB, RBI and other exams. Boats and Streams Questions Bank PO. A man can row 40 kmph in still water and the river is running at 10 kmph. If the man takes 2 hr to row to a place and back, how far is the place? A) 38km…
Read More