A photograph is 3 cm wide and 5 cm long if the photograph is enlarged so that tha long side is 15cm how wide wii the photograph be? Share with your friends Share 2 Neha Sethi answered this Let length be denoted by l cmand breadth be b cmSo, l1=5 cmb1=3 cm l2=15 cmTo find: b2we havel1b1=l2b2⇒53=15b2⇒b2=9 cm 1 View Full Answer