The least number of square tiles that will be needed to pave a plot 225 m by 30 m is _____.
A 30 tiles
B 15 tiles
C 25 tiles
D 45 tiles
Ans 1:
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Class : Class 8
the answer must be 30 but checking by calculating 15 is wrong. The answer= (225x30)/30=30
Ans 2:
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Ans 7:
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Ans 12:
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Class : Class 10
you should all think a bit(mine answer is also gicen wrong) and read the question properly , I THINK WE SHOULD TRY TO FIND OUT THE NO. OF TILES BY TAKING HCF OF 225 AND 30 . REASONS1)BECAUSE THE CHAPTER IS ABOUT NO. CALCULATION , NOT MENSURATION2) YOU DO NOT HAVE A DEFINITE METHOD BY FIRST FINDING THE AREA AND THEN DOING ALL THESE THINGS . THIS METHOD DOES NOT MAKE SENSEso , first of all , we should try out with hcf best of luck!
Ans 13:
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Class : Class 9
It should be 15 because the area is not divisible by 15 ........... ALSO if the area be divisible by 30 , but they asked the least number of tiles ......so it cannot be 30 at all
Ans 15:
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Class : Class 8
the answer should be 30. the side of one tile is 15 cm ,but they have asked the tile so it should be 30 only . and those who say that children who are having the answer30 have no brains they only don't have brains
Ans 18:
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Class : Class 10
found the solution! the answer is correctif we find hcf of 225 and 30 , WE ARE FINDING OUT THE LENGTH OF ONE SIDE OF A TILE , NOT THE NO. OF TILESTHEN , WE FIND THE AREA OF ONE TILE , THAT IS 15*15=225NOW, DIVIDE THE AREA OF PLOT BY AREA OF ONE TILE .YOU WILL GET THE ANSWER I.E 30
Ans 20:
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Ans 21:
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Ankush Ghosh
from
DPS, Doha
Class : Class 10
But they asked how many tilesThe side of one tile is 15cmso if you divide 225x30 (area of the floor)by 15x15 ( area of one tile) you get 30 so 30 is the answer
Ans 22:
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Class : Class 7
This one has too many mixed answers. SOF has to give the master answer in simple english
Ans 25:
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Ans 27:
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Class : Class 4
Obviously it should be 15 how 225 is supposed to be divisible by 30 without integers so dedinetly answer is 15