Two rulers

We have two rulers. Scale interval on first rulers are a spaced 1 cm and on second spaced 15 mm. Rulers are attached to each other so that they match initial divider commas. What next dividers commas coincide? Find at least three cases.

Result

a =  30 mm
b =  60 mm
c =  90 mm

Solution:

Solution in text a =
Solution in text b =
Solution in text c =







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Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation? Do you want to convert length units? Do you want to calculate least common multiple two or more numbers?

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