Step-by-step explanation:
3/4" on the blueprint correlates to 10' in reality.
the building (or barn) is 48' high.
so, what is the factor of this compared to the normed 10' ?
10×f = 48
f = 48/10 = 4.8
alright !
now ask we need to do is: apply this factor now to the blueprint scale :
3/4 × 4.8 = 3/4 × 4 8/10 = 3/4 × 4 4/5 = 3/4 × 24/5 =
= 3×24 / 4×5 = 72/20 = 18/5 =3 3/5"
the building/barn is therefore 3 3/5" tall on the blueprint.
