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Two temperature scales A and B are rela...

Two temperature scales A and B are related by :
`(A-42)/(110)=(B-72)/(220)`
At which temperature two scales have the same reading ?

A

`-42^@ `

B

`-72^@ `

C

`+12^@ `

D

`-40^@ `

Text Solution

Verified by Experts

The correct Answer is:
C
Let at temperature T both the scales A and B have the same reading
` therefore (t-42 )/(110) = (T-72 )/( 220 ) implies 2T - 84 = T- 72 or T- + 12^@ `
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