5cmig5 cm high.EXAMPLE 9. An open box is made of wood 3 m thick. lis external length, breadth andEXAMPLE 9. An open box is made of wood 3 cm thick. Its external length, breadth andleight are 1.48 m, 1.16 m and 8.3 dm. Find the cost of painting the inner surface at therate of t 50 per square metre.BSE SP01ICBSE SP 2012]

5cmig5 cm high.EXAMPLE 9. An open box is made of wood 3 m thick. lis e

1.	5cmig5 cm high.EXAMPLE 9. An open box is made of wood 3 m thick. lis external length, breadth andEXAMPLE 9. An open box is made of wood 3 cm thick. Its external length, breadth andleight are 1.48 m, 1.16 m and 8.3 dm. Find the cost of painting the inner surface at therate of t 50 per square metre.BSE SP01ICBSE SP 2012]
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