Give the step-by-step reasoning process and then the final answer. In a yard, the number of tanks is five times the number of trucks. If there are 20 trucks in the yard, calculate the total number of tanks and trucks in the yard.

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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There are 5 * 20 = 100 tanks in the yard. Altogether, there are 100 + 20 = 120 trucks and tanks in the yard.
The final answer: 140.