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?
Choose the correct choice
A) 10 B) 11 C) 12 D) 13 E) 14
Sol.   = (13.6 ÷ 8.5) × 7.5   = 12 cm.   Answer : 12
<result>C</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?