the picture of a moth in a dictionary is drawn to the scale 1:6. If the length of the moth in the picture is 3/6" the actual length of the moth in inches is:
a)2"
b)2 1/8"
c)1 7/8"
d)2 1/2"
e) none of these

Question

the picture of a moth in a dictionary is drawn to the scale 1:6. If the length of the moth in the picture is 3/6" the actual length of the moth in inches is: 
a)2"
b)2  1/8"
c)1  7/8"
d)2  1/2" 
e) none of these

sasogeek · Answer

if the scale is 1:6, it means that every unit, say 1cm, of the picture in the dictionary, is equivalent to 6cm of the real moth. so then the equation would be x:6x since 1:6(1)
so then we need to break down 3/6 to the lowest possible fraction before we proceed
3/6 = 1/2
=> 1/2 : 6 (1/2)
      1/2 : 6/2
      1/2 : 3

anonymous · Answer

thx saso!

sasogeek · Answer

hence the actual size of the moth is 3" but it's not in the answers so the answer is e) none of these