Two temperature scales P and Q are related
by P − 42/110 = Q - 72/220. At which temperature two scales have the same reading?
A – 42°
B –72°
C +12°
D – 40°
question is wrong
Two temperature scales P and Q are related
by P − 42/110 = Q - 72/220. At which temperature two scales have the same reading?
A – 42°
B –72°
C +12°
D – 40°