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The external length, breadth and height ...

The external length, breadth and height of a closed rectangular wooden box are 18cm, 10cm and 6cm respectively and thickness of wood is `1/2c mdot` When the box is empty, it weight 15kg and when filled with sand it weighs 100kg. Find the weight of one cubic cm of weed and cubic cm of sand.

A

`1/7"kg,"1/9"kg"`

B

`1/21"kg,"1/9"kg"`

C

`1/21"kg,"1/7"kg"`

D

`1/9"kg,"1/7"kg"`

Text Solution

Verified by Experts

The correct Answer is:
B
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