A room is 36 m long, 12 m wide and 10 m ...

A room is 36 m long, 12 m wide and 10 m high . It has 6 window , each ` 3m xx 2.5 m `, one door ` 9.5m xx 6 m and ` one fire chimney ` 4m xx 4.5`. Find the expenditure of papering its walls at the rate of 70 paise per metre , if the width of the paper is 1.2 m :

`₹490`

`₹690`

`₹1,000`

none of these

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