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A solution is to be kept between 68oF an...

A solution is to be kept between `68oF` and `77oF` . What is the range in temperature in degree Celsius (C) if the Celsius / Fahrenheit (F) conversion formula is given by `F=9/5C+32 ?`

Text Solution

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solution : `68^@ F - 77^@F`
`68^@F < T < 77^@F`
`68^@F < 9/5C+32 < 77^@F `
`68-32 < 9/5C <77-32`
`36<9/5C <45`
`= 20 < C < 25`
Solution is in between `20^@C & 25^@ C`
answer
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