Question

a Boat goes 16 km upstream in 2 hours and downstream in one hour find out how much time boat will take to travel 32 kilometre in a still water ​

Answer 1

Step-by-step explanation:

d = 16 km

t = 2 hr

speed upstream = d/t = 8 km/hr

d = 16 km

h = 1 hr

speed downstream = d/t = 16 km/hr

x = speed still water & y =  speed current

x-y = 8   ( eqn 1 )

x+y = 16 ( eqn 2 )

eqn 2 - eqn 1; y = 4 & x = 12

speed still water = 12 km

Therefore,

t = d/s = 32/12 = 2.66 hr