Question

Two thermometers X and Y have ice point marked at 15⁰ and 25⁰ and steam points marked as 75⁰ and 125⁰ respectively. When thermometer X measures the temperature of a bath as 60⁰ on it, what would thermometer Y read when it is used to measure the temperature of the same bath ?

• A. 60⁰
• B. 75⁰
• C. 100⁰
• D. 90⁰

Answer 1

Answer: (C)

100⁰

Answer 2

$\frac{60 - 15}{75 - 15}$ = $\frac{Y - 25}{125 - 25}$

$\frac{45}{60}$ = $\frac{Y - 25}{100}$ Ž Y = $\frac{100}{60}$ × 45 + 25 = 100ŗ