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Two temperature scale A and B are relate...

Two temperature scale 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 ^(@) `

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