a rectangle courtyard is 18 m 20 cm long and 15 m 30 cm broad. it is to be paved with square stones of the same size. find the least possible number of such stones.
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Answer:27846
Step-by-step explanation:
Well you make 15m and 30cm and 18m and 20 cm just into cm which leaves you with 1530cm and 1820cm.
You then find the highest common factor of these two numbers which in this case is 10cm.
You then find the area of the courtyard by timesing 1530 by 1820 to get 2784600cm^2
You then do 10cm by 10cm to get the area of each stone which is 100cm^2
Finnally you do 2784600/100 to get 27846.
This is the number of stones you need to pave the courtyard
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