The cost increased by 2 times and then decreased by 50%. How did the initial cost change?
| May 22, 2021 | education
We accept the initial cost equal to 100%.
After it doubled, it was:
100% * 2 = 200% (of the original price).
We accept the new cost equal to 100%.
In this case, after reducing the price by 50%, it was:
100% – 50 = 50% (of the previous price).
It follows from this that the new price is equal to:
200% * 50% / 100% = 2 * 0.5 = 1 or 100%.
Answer: The original cost has remained the same.
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