# User Forum

Subject :IMO    Class : Class 7

## Ans 1:

Class : Class 8

Subject :IMO    Class : Class 4

## Ans 1:

Class : Class 4
https://balkonline.ru/uteplenie-balkona.html

## Ans 2:

Class : Class 8
I think the answer is b

## Ans 3:

Class : Class 4
In D minus sign is not given

Class : Class 6
b

## Ans 5:

Class : Class 8
In the solution there is a sign but in the question ther is no sign in B D

## Ans 6:

Class : Class 7
''-'' is missing in B as well as D.

## Ans 7:

Class : Class 4
sign is missing in B and D options

## Ans 8:

Class : Class 8
The options are misprinted !!!!!

Class : Class 3

Class : Class 7

## Ans 11:

Class : Class 4
solution not given in a proper manner

## Ans 12:

Class : Class 4
options misprinted too

Class : Class 10

Class : Class 4
Yes

## Ans 15:

Class : Class 3
"-" sign is missing in b

## Ans 16:

Class : Class 8
minus sign is missing

Subject :IMO    Class : Class 5

Subject :IMO    Class : Class 6

Class : Class 8
The ans is B

Class : Class 1

## Ans 3:

Class : Class 6
The net B will form given cube So ans will be- B

Subject :IMO    Class : Class 7

Subject :IMO    Class : Class 7

Subject :IMO    Class : Class 6

## Ans 1:

Class : Class 9
The answer should be 15 as 225 is not divisible by 30

## Ans 2:

Class : Class 9
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 3:

Class : Class 4
Obviously it should be 15 how 225 is supposed to be divisible by 30 without integers so dedinetly answer is 15

## Ans 4:

Class : Class 6
I agree to Arjit. It should be 15 because 225 is not divisible by 30

## Ans 5:

Class : Class 6
I also agree to arijit

## Ans 6:

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 7:

Class : Class 9
The answer is C. 15 tiles.

Class : Class 8
It should be 15

## Ans 9:

Class : Class 6
Yes 30 should be the answer

Class : Class 8
it is 30

## Ans 11:

Class : Class 7
It should be 15 because the area is not divisible by 30

Class : Class 8
IT should be 15

Class : Class 8

## Ans 14:

Class : Class 8
Guys see the solution

## Ans 15:

Class : Class 8
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 16:

Class : Class 9
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 17:

Class : Class 8
the answer must be 30 but checking by calculating 15 is wrong. The answer= (225x30)/30=30

## Ans 18:

Class : Class 7
This one has too many mixed answers. SOF has to give the master answer in simple english

Class : Class 6

Class : Class 6

## Ans 21:

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

Class : Class 10
its 15

Class : Class 6

Class : Class 10

## Ans 25:

Class : Class 8
The answer should be 30 because they have asked number of tiles

## Ans 26:

Class : Class 6
those who have written 30 have no brains

## Ans 27:

Class : Class 9

Subject :IMO    Class : Class 3

## Ans 1:

Class : Class 3
(A)

Subject :IMO    Class : Class 4

Class : Class 7
C

Class : Class 9
C-grinder

Class : Class 2
C

## Ans 4:

Class : Class 8
yes c because according to the question oven is called grinder

Class : Class 7

Class : Class 4
yeah C grinder

Class : Class 4
Grinder