The graph between two temperature scales A and B is shown in figure. Between upper fixed point and lower fixed point there are `150` equal division on scale A and 100 on scale B. The relationship for conversion between the two scales is given by

Options

A. `(t_(A)-180)/(100)=(t_(B))/(150)`
B. `(t_(A)-30)/(150)=(t_(B))/(100)`
C. `(t_(B)-180)/(150)=(t_(A))/(100)`
D. `(t_(B)-40)/(100)=(t_(A))/(180)`

Answer

B

Explanation

Equating the slope between three points.