Question

A solution is to be kept between ${30}^o$C and ${35}^o$C. What is the range of temperature in degree Fahrenheit?

• A. Between ${30}^o$F and ${35}^o$F
• B. Between ${40}^o$F and ${60}^o$F
• C. Between ${86}^o$F and ${95}^o$F
• D. Between ${76}^o$F and ${105}^o$F

Answer 1

The correct option is C Between ${86}^o$F and ${95}^o$F

We know that $T_{F^{{}^o}}=T_{C^{{}^o}}\times \frac{9}{5}+32$

When $T_{C^o}={30}^o$

Then, $T_{F^o}={30}^o\times \frac{9}{5}+32$

$=54+32={86}^o$ F

And when $T_{C^o}={35}^o$

Then, $T_{F^o}={35}^o\times \frac{9}{5}+32$

$=63+32={95}^o$ F

Then, range of temperature in degrees Fahrenheit is equal to ${86}^o$ F and ${95}^o$ F.