Dont fear- clucky the supa ridda solva is here
pattypus wrote:
Bob and Chris each wash a car. Bob washes the car in 8 minutes, and Chris washes it in 6 minutes. How much time would it take for them to both wash a car, together?
I have never figured this out. I asked my teacher, and she didn't know.
In one minute, bob can wash 1/8 of the car. In one minute, chirst can wash 1/6 of the car, thus in one minute, they can both wash 1/8+1/6=5/24ths of the car. Hence in 4 minutes they can wash 20/24th of the car, and in 4/5ths on an extra minute they can wash all the car. Thus it takes 4 and 4/5ths minutes, or 4 minutes 48 seconds for them to wash the car.
Quote:
A man sees a nice horse for sale, it costs 50 dollars.
So he takes out 50 dollars and buys the horse.
Later, someone sees his horse and offers him 60 dollars for it.
He sales the horse but then decides he wants it back.
He has to buy it back for 70 dollars.
The someone else sees the horse and offers him 80 dollars for it.
This is too good to pass up, so he sales the dog once again.
Has he made a 10 dollar profit or a 20 dollar profit?
he starts with no horse and ends with no horse
over time he spends 120(50+70) dollars and gets 140(60+80) dollars.
If you think its a ten dollar profit, i'll give you 15 bucks for profit
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Quote:
A man says to someone,"everything I say is a lie." Is he lying or telling the truth?
He is lieing. Everything he says could be the truth or could be a lie. The currently statment is a lie-he could then say "the sky is blue" and tell the truth.