Question

Give the correct solution....​

Answer 1

Answer:

I think 65 km / hr.

Step-by-step explanation:

if it is right so please mark me as a brain list

Answer 2

Answer:

b) 45 km / hr

Step-by-step explanation:

Let x= Original Speed

we know that distance/ Speed = time

So as per the question the following equation can be formed

360/x - 360/x+5 = 48/60

[1 hour = 60 minutes]

⇒ 1/x - 1/x+5 = 48/60 . 1/360

⇒ 5/ x²+ 5x = 1/450

⇒x² +5x −2250 =0

⇒x² −45x+50x−2250=0

⇒x(x−45)+50(x−45)=0

⇒(x−45)(x+50)=0

x=45,−50

As the speed can't be negative so,

x=45

hope this helps :)

please mark brainliest