if the average of A and B is 30 and the average of B and C is 40 what is the value of C_A?
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20
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sashii:
i didnt get
dont worry bro , i will try again..
It went 400 miles at 80 mi/hr = 5 hours
800 miles @ 96 mi/hr = 800/96 = 25/3 hours for the round trip.
25/3 - 5 = 10/3 hours to return
400 mi/(10/3)hr = 120 mi/hr
800 miles @ 96 mi/hr = 800/96 = 25/3 hours for the round trip.
25/3 - 5 = 10/3 hours to return
400 mi/(10/3)hr = 120 mi/hr
finnaly i got it bro...
did u get that bro...
how comes 800
???
from a to b 400 and returns from b to a 400, total 800
now did u get bro...
yes
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