plz tell me this yrrrrrrrrr
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The solving part of quadratic eqn is wrong. Pls don't refer that. The steps to approach the ans is right. On solving you'll get 45km/hr.
Hope this helps you.
Hope this helps you.
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memphis0510:
let the time later be k
so t-k =1/2
now solve
it didn't say half an hour for the journey but half an hour less!
yaaaaa
for eg.
that's what I did too!
you can see the pic given
if i tell that something takes 2 mins more
i can take first speed - second speed= 2
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