Question

How many pieces of stone slabs,each 24cm long and 15 cm broad will be required to lay a path 18m long and 12m wide ?

Answer 1

area of the slab=24*15=360cm^2
area of the path=18*12=216m^2=216*10000=2160000cm^2
the no of slabs=2160000/360=6000 slabs

Answer 2

number of stones slab required = area of path / area of stone slabs
area of stone slabs =l×b
=24×15
360cm^2

area of path in cm=?(1m=100 cm)
l in cm =1800cm
b in cm =1200cm

area =l×b
=1800×1200cm
2160000cm^2


no of slabs=2160000/360
=6000


hope it helps you enough.