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Popular Word Problems >

When a number is decreased by 19%, the result is 66. What is the original number to the nearest tenth?

Solution

Wh e n a n u mb er i s d ecre a se d b y 19%, t h e res u lt i s 66. Wha t i s t h e or i g ina l n u mb er t o t h e n e a res t t e n t h ?

Solution

Amount before reduction : 81.48148 \dots

Solution steps

Translate the problem into an equation:

66 = x - 0.19 x

66 = x - 0.19 x : x = \frac{2200}{27}

\frac{2200}{27} = 81.48148 \dots

Amount before reduction : 81.48148 \dots

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