47. How many rectangular slabs of 10 cm x 8 cm are 59
required to cover the floor of a hall 12 m x 10 m?
(B) 15000
(D) 18000
(A) 12000
(C) 10000
pls give me the write answers
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Answer:
area of slab = l*b = 10*8 = 80cm²
area of floor = 1200 *1000 = 1200000
no of rectangular slabs needed to cover floor = 1200000/80 = 15000
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