exam
Maths Puzzle
Numerical Ability
Certain machine cost $40,000. Now, after 9 years it costs $2,000. How much did it cost 3 years ago? How much does it depreciate per year?
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exam Other Question
In a race, the first prize will be $5 greater than the second and the second will be $4 greater than the third. The total prize money is $52. Find each prize.
need assistance with rationalizing denominators:
5/square root of 6 minus 2