exam Maths Puzzle Numerical Ability

The distance a car can travel on a certain amount of fuel varies inversely with its speed. If a car traveling 50 mph can travel 300 miles on 10 gallons of fuel, how far could the car travel on 10 gallons of fuel at 60 mph?

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exam Other Question

End behavior of of each graph of the polynomial..

-6d^3 -4d^2 +2d -1

I got.. a<0 n odd.. because the function d has odd degree and a negative dominating term.

is that correct? The 5th little [iggy ran all the way at two different rates. First he ran at 8mph for the first third of the trip but soon got tired and slowed down to 5mph for the rest of the two mile trip. Find how many minutes it took the little piggy to get home.