A cubical rectangular bar has the dimensions with the ratio 5 : 4 : 3. Its volume is 7500. What
is the surface area of the bar?	Select:  A) 1350  B) 2350  C) 4350  D) 5640  E) 8456
volume of cubiod is lbh:5x*4x*3x=7500;   x=5   now,area is 2(lb+bh+lh):2(25*20+20*15+25*15)=2350.   therefore,area=2350   1350NSWER:1350
<result>A</result>
A cubical rectangular bar has the dimensions with the ratio 5 : 4 : 3. Its volume is 7500. What
is the surface area of the bar?