A rectangular tank measures 16mx15mx6m. How many tonnes of oil of RD 0.78 can it hold?

Given : L =16m , B = 15m, H = 6m, RD=0.78

Volume of rectangle =(LxBxH)
=16x15x6
=1440m3

We know that :
Density = Mass /Volume
0.78 =Mass/1440m³

Hence, Mass =1123.2 tonnes