Question

pls help me ................... ​

Answer 1

Answer:

if speed of stream is 6km/hr

Then, 20 hours *6km/hr

=120km/hr

Answer 2

Step-by-step explanation:

I learnt this type of questions few days ago also.

Let the speed of the steamer in still water be x km/h.

Then, the speed downstream =(x+6) km/h

and the speed upstream =(x−6) km/h

Given, distance covered in 20 hours downstream = distance covered in 32 hours

∴20(x+6)=32(x−6)

Solve for x:

20 (x + 6) = 32 (x - 6)

Expand out terms of the left hand side:

20 x + 120 = 32 (x - 6)

Expand out terms of the right hand side:

20 x + 120 = 32 x - 192

Subtract 32 x from both sides:

(20 x - 32 x) + 120 = (32 x - 32 x) - 192

20 x - 32 x = -12 x:

-12 x + 120 = (32 x - 32 x) - 192

32 x - 32 x = 0:

120 - 12 x = -192

Subtract 120 from both sides:

(120 - 120) - 12 x = -120 - 192

120 - 120 = 0:

-12 x = -120 - 192

-120 - 192 = -312:

-12 x = -312

Divide both sides of -12 x = -312 by -12:

(-12 x)/(-12) = (-312)/(-12)

(-12)/(-12) = 1:

x = (-312)/(-12)

The gcd of -312 and -12 is -12, so (-312)/(-12) = (-12×26)/(-12×1) = (-12)/(-12)×26 = 26:

Answer:

26 or 26 km/h

Its very likely that my answer is wrong

thanks bro for marking its as brainliest, however I don't have brain

And I wanna ask, " is the answer correct?"