Question

Ali sticks a rectangular poster on a rectangular wall.The wall is 5 m long to the nearest metre (m) and 2 m tall to the nearest metre (m).The poster is exactly 1.6 m wide and 0.9 m tall.Work out the lower bound of the percentage of the wall that is covered by the poster.Give your answer to 2 d.p.

Answer 1

14.40%

Explanation:

Poster is (1.6 m)*(0.9 m) = 1.44 m^2

Wall is (5 m)*(2 m) = 10 m^2

The poster covers (1.44 m^2)/(10 m^2) = 0.1400 or 14.40%