Question

A student reaches her school in 20 minutes with an average speed of 12 km per hour. If she wants to reach her school 8 minute earlier..Her speed should be??

A) 8km/h
B) 12km/h
C) 20km/h
D) 15km/h​

Answer 1

$\huge\colorbox{pink}{answer࿐ }$

Step-by-step explanation:

Option B) 20 km/h

Hope it will be Helpful Ren ;)

Answer 2

Answer:

Distance to be travelled= Speed*Time

= 12*(20/60)

= 4 kms

If he needs to reach 8 minutes earlier, time = 20-8 = 12 minutes = (12/60) hours

Speed= Distance/Time

= 4/(12/60)

= 4*5

= 20 km/hr

Step-by-step explanation:

I think it's correct pls check ^_^