a room has a floor measuring 15m by 8m it has to be covered with tiles of size 50cm by 25cm how many tails are required if a caepet is laid on the floor so that a space of 1.5m is left around the edges of floor what fraction of floor is uncovered
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the answer is 43/56 ...
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NO. OF TILES
= AREA OF FLOOR AREA OF 1 TITLE
= (15 M x 8 M) -( 50CM x 25 CM)
=(1500CM x 800CM ) + (5OCM x 25 CM)
=1200000-1250
=960 titles
length of carpet 15 -1.5 -1.5 12 m
breadth of carpet = 8-1.5 -1.5- 5m
so area of carpet = 12x5 60 m2
sO uncovered floor = 15x8 - 60
=120 60 60m2
SO FRACTION OF FLOOR UNCOVERED
= 60/12O
1/2
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