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?

Let length be denoted by l cmand breadth be b cmSo, l1=5 cmb1=3 cm l2=15 cmTo find: b2we havel1b1=l2b253=15b2b2=9 cm

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