Solution: By what percent would his petroleum bill be changed?

After the price of petroleum oil went up by 10%, a consumer reduced his oil consumption by the same percent. By what percent would his petroleum bill be changed?

By what percent would his petroleum bill be changed?

Problem Statement:

After the price of petroleum oil went up by 10%, a consumer reduced his oil consumption by the same percent. By what percent would his petroleum bill be changed?

Problem Answer:

His petroleum bill will be change by 1 percent.

Solution:

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