Difficult Math problem ~ A and B ran a race of 480 m. In the first heat, A gives B a head start of 48 m and beats him by 1/10th of a minute. In the second heat, A gives B a head start of 144 m and is beaten by 1/30th of a minute. What is B's speed in m/s?
(A) 12
(B) 14
(C) 16
(D) 18
(E) 20

Question

Difficult Math problem ~ A and B ran a race of 480 m. In the first heat, A gives B a head start of 48 m and beats him by 1/10th of a minute. In the second heat, A gives B a head start of 144 m and is beaten by 1/30th of a minute. What is B's speed in m/s? 
(A) 12 
(B) 14 
(C) 16 
(D) 18 
(E) 20

anonymous · Answer

@lgbasallote @alexwee123 @accessdenied @dpaInc 
I think I know the answer but i'd like to see what you guys get:)

inkyvoyd · Answer

Oh, you excluded me. *starts crying*

lgbasallote · Answer

ugh algebra =_=

anonymous · Answer

lol..the question isn't exactly for me so I'm just glad knowing the answer:)

anonymous · Answer

Though my guess is A

inkyvoyd · Answer

Yea, this is just a system of two linear equations. I'd take a look, but it's boring. It's really just the words that are confusing, not mathematical concepts.

alexwee123 · Answer

can someone help me w/ polar conics? :/

anonymous · Answer

I'll just close this question cuz I have another one:)

dumbcow · Answer

--> (480-48)/(t+6) = (480-144)/(t-2)   where t is time it takes A to finish

--> t = 30

--> speed of B  = 336/28 = 12

anonymous · Answer

Your awesome @dumbcow :)