exam Maths Puzzle Numerical Ability

a girl has 24 quarters and dimes. togther they had up to 3.60 how many quarters does she have?

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exam Other Question

Solve for 'x':
a) x=logbase6 9 +logbase6 8- logbase6 2
b) x=logbase8 sqrt80- logbase8 sqrt5 A boat travels 45 mi upstream (against the current) in 5h. the boat travels the same distance downstream 3 h. what is the rate of the boat in still water? what is the rate of the current?