RD Sharma - Mathematics

Book: RD Sharma - Mathematics

Chapter: 15. Linear Inequations

Subject: Maths - Class 11th

Q. No. 6 of Exercise 15.4

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6

A solution is to be kept between 30oC and 35oC. What is the range of temperature in degree Fahrenheit?

We have been given that, a solution is kept between 30° C and 35° C.


Let C1 = 30° C


And let C2 = 35° C


The conversion formula is given by



We need to convert degree Celsius to degree Fahrenheit.


So, take C1 = 30° C


Using the formula, we have




F1 = 9 × 6 + 32


F1 = 54 + 32


F1 = 86° F


Now, take C2 = 35° C


Using the formula, we have




F2 = 9 × 7 + 32


F2 = 63 + 32


F2 = 95° F


Therefore, the range of temperature of the solution in degree Fahrenheit is 86° F and 95° F.


Chapter Exercises

More Exercise Questions

8

A company manufactures cassettes and its cost and revenue functions for a week are and R = 2x respectively, where x is the number of cassettes produced and sold in a week. How many cassettes must be sold for the company to realize a profit?