Question

a verandah 1.25m wide is constructed all along the outside of a room 5.5m long and 4m wide find :
(1) the area of the verandah
(2) the cost of cementing the floor of the verandah at the rate of Rs.25 per sq. m.

Answer 1

Length = 5.5-1.25×2=3m.
Breadth = 4-1.25×2=1.5m.
Aresa of verandah =l×b= 3×1.5=4.5m².
area of floor = l×b
5.5×4=22m² .
cost =22×25=€550m².answer.

Answer 2

Answer:

450 Rs

Step-by-step explanation:

Area of the room is given by 4 * 5.5 = 22m2

Area of the verandah with room is (5.5 + 1.25 + 1.25) * (4 + 1.25 + 1.25) = 8 * 6.5 = 52

Area of only verandah = 52 - 22 = 30m2

Cost of cementing the floor of the verandah = 15 Rs/m2

Total cost of cementing 30m2 verandah = 30 * 15 = 450 Rs