Answers

2014-05-12T13:08:15+05:30
Let height be x.
area of rectangular box=2(lb+bh+hl)
120=2(10*5+5*x+x*10)
120=2(50+15x)
60=50+15x
10=15x
x=10/15=2/3
=>height=0.66...m. 
The ans is not sure...!
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