Qualification > Math
Additional Math Help HERE ONLY...!
Anonymous:
Ask me any question and I'll pwn all you n00bs.
Ghost Of Highbury:
@anonymous
i found this question in a guide and coul not solve it
hope u help me in this
Q. A train 150m long is running with a speed of 68mph. In whate time will it pass a man who is running at 8mph in the same direction which the train is going.
Q. A and B undertake to do a peice of work for $600. A alone can do it in 6 days while B alone can do it in 8 days. With the help of C
they finish it in 3 days. Find the share of each?
i hope u help me.
thanks in advance
SGVaibhav:
this looks impossible to the current maths i know (IGCSE MATHS)
sweetsh:
It's similar to the math that you'll take in A Level.
fREnZy:
Perms and Combs -
Whenever the order is necessary, use permutations. Whenever you just have to pick, in no order whatsoever, use combinations.
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