exam
Maths Puzzle
Numerical Ability
If a boat goes downstream 72 miles in 3 hours and upstream 60 miles in 6 hours, the rate of the river and the rate of the boat in still water respectively are ?
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please help me with this problem:
for the following inequality:x-y<-4
list three ordered pair solutions for the boundary of this inequality
(((8m^3-27)))