the lenght of a room is 5.5 m and width is 4 m. find the cost of paving the floor by slabs at the rate of rs. 900 per sq. metre.	Choose the correct choice from the following options:
A) s . 19,800	B) s . 15,600	C) s . 16,500	D) s . 17,600	E) s . 17,900
<gadget id="calculator">5.5 * 4</gadget>
<output>22</output>

<gadget id="calculator">900 * 22</gadget>
<output>19_800</output>

<result>A</result>
the lenght of a room is 5.5 m and width is 4 m. find the cost of paving the floor by slabs at the rate of rs. 900 per sq. metre.
multiply(900, multiply(5.5, 4))
"area of the floor = ( 5.5 ã — 4 ) m 2 = 22 m 2 . cost of paving = rs . ( 900 ã — 22 ) = rs . 19800 answer : option a"