Dr. Sherif N. answered 05/14/17
Tutor
New to Wyzant
Educator, Coach and Mentor
area of room 1 = 3.6 x 3.9 = 14.04 square meter
area of room 2 = 3.0 x 4.1 = 12.30 square meter
area of room 3 = 3.4 x 3.1 = 10.54 square meter
total area = 36.88 square meter
cost of buying and laying 1 square meter = 25.50 + 25.50 = $51
total cost before adding wastage = 36.88 x 51 = $1,880.88
to add 5% wastage, multiply the total by 1.05
total including wastage = $1,880.88 x 1.05 = $1,974.924
good luck Bella