An open box is made of wood 2 cm thick. ...

An open box is made of wood 2 cm thick. Its internal length is 86 cm , breadth 46 cm and height is 38 cm. The cost of painting the outer surface of the box at Rs. 10 per `m^(2)` is :

`rs 18.5`

`rs 8.65`

`rs 11.65`

`rs 17.50`

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