The length of a room is 5.5 m and width is 3.75 m. What is the cost of paying the floor by slabs at the rate of $400 per sq. metre. Options:	A) $8250	B) $8350	C) $8650	D) $8450	E) $8500
Area =5.5×3.75 sq. metre.   Cost for 1 sq. metre. = $400   Hence, total cost   =5.5×3.75×400= $8250   $8250
<result>A</result>
The length of a room is 5.5 m and width is 3.75 m. What is the cost of paying the floor by slabs at the rate of $400 per sq. metre.