A photograph measuring 8.5 by 7.5 cm is to be enlarged. If the enlargement of the longer side is 13.6 cm, what is the length of the smaller side? Answers:
A) 12 cm
B) 10 cm
C) 13 cm
D) 15 cm
E) 19 cm
12 cm   12 cm   = (13.6 ÷ 8.5) × 7.5   = 12 cm.
<result>A</result>
A photograph measuring 8.5 by 7.5 cm is to be enlarged. If the enlargement of the longer side is 13.6 cm, what is the length of the smaller side?