Question

a verandah 1.25 m wide is constructed all along the outside of a room 5.5 M long and 4 metre wide find the cost of cementing the floor of this one and the at the rate of 15 rupees per square metre

Answer 1

Hey,

Area of the room is given by
4 * 5.5 = 22m^2

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
= 30m^2

Cost of cementing the floor of the verandah
= 15 Rs/m^2

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

HOPE IT HELPS:-))