Consider the question. Ivan has 20 dice. Jerry has twice as many dice as Ivan. How many dice do they have altogether?
 If the answer is '60'; explain the reasoning:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Jerry has 2 x 20 = 40 dice. Therefore, they have 20 + 40 = 60 dice altogether.