Question

11) How many bricks 20cm long and 10cm
wide will be required to pave floor
10m long and 8m wide ?
A) 6000
B) 8000
C) 4000
D) 12.000​

Answer 1

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Answer 2

Answer:

firstly convert meter into centimeters

that is 10m=1000cm

and 8m=800cm.

area of floor 800X1000=800000cm

length of brick 20cm breadth of brick 10cm

now area of brick will be 20X10=200cm

800000÷200(ar of floor / ar of brick)

you can also convert it into meters by dividing by 100

800000÷100=8000

200÷100=2

here 8000÷ 2

4000

you need 4000 bricks

Step-by-step explanation:

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