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Question 1 of 10
What unit is one hundredth of a metre?
Question 2 of 10
What is 25 less than the product of 10 & 20?
Question 3 of 10
What shape is an ellipse?
Question 4 of 10
If a trains travels 5 miles in 3 minutes, how far does it go in three quarters of an hour?
Question 5 of 10
The Cartesian coordinate system is divided into four what?
Question 6 of 10
A factory makes 1800 units a day. How many boxes of 72 units can it fill?
Question 7 of 10
What is half of a quarter of a tenth of 80?
Question 8 of 10
Jack worked 36 hours one week, and then 40 for the next two weeks. What's his average over the three weeks?
Question 9 of 10
What shows the steepness or incline of a line?
Question 10 of 10
Roughly how many millilitres are in a teaspoon?

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Riddle answer: 19 = XIX 19-1 = XIX - I = XX = 20

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