7th Class Mathematics Comparing Quantities

  • question_answer 16)
    The population of a city decreased from 25,000 to 24,500 Find the percentage decrease.

    Answer:

                    \[\text{percent decrease = }\frac{\text{Amount of decrease}}{\text{Original amount}}\text{ }\] \[\text{ }\!\!\times\!\!\text{ 100 }\!\!%\!\!\text{ }\] \[=\frac{25,000-24,500}{25,000}\times 100%\] \[=\frac{500}{2,5000}\times 100%=2%\]


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