Question

upsud
sured.
i)
ii)
Let speed of the stream be x km/hr. then speed of the motor boat in upstream will
be
a) 20km/hr b) (20 + x)km/hr c) (20 - x)km/hr d) 2km/hr
What is the relation between speed distance and time?
a) Speed = distance/time b) distance = speed/time
c) time = speed X time d) none of these
Which is the the correct quadratic equation for the speed of the current?
a) x2 + 30x.- 200 = 0 b) x2 + 20x - 400 = 0
c) x2 + 30x - 400' = 0 d) x2 - 20x - 400 = 0
What is the speed of current?
a) 20km/hr b) 10km/hr c) 15km/hr d) 25km/hr
How much time boat took in downstream?
a) 90 minutes b) 15 minutes c) 30 minutes d)45 minutes
iv)
v)​

Answer 1

I hope this is help ful to you