Question

A Photograph enlarged to make a poster, the photograph is 10cm wide and 15cm high, The poster is 35cm wide, how high is the poster?​

Answer 1

52.5 cm

Explanation:

Assuming the scale factor is the same in all directions, for poster height h, we have ...

height/width = h/(35 cm) = (15 cm)/(10 cm)

h = (35 cm)(15/10) = 52.5 cm . . . . . multiply by 35 cm

The poster is 52.5 cm high.