International Maths Olympiad Forum By SOF Olympiad Trainer - Page 525

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 5
options given seems to be wrong

Ans 2:

Class : Class 3
How the value of 2 moon is 18 i think 324/2=162

Ans 3:

Class : Class 3
It is not that hard, just that if you understand the question you can easily find the answer.The pea pie who are saying that the question is wrong, you are the one who is wrong, not the question!

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6
wat

Ans 6:

Class : Class 3

Ans 7:

Class : Class 4

Ans 8:

Class : Class 8
IT IS OUT OF SYLLABUS.

Ans 9:

Class : Class 4
Out of Syllabus

Ans 10:

Class : Class 3
I don't know the answer because IT IS OUT OF SYLLABUS

Ans 11:

Class : Class 3
correct answer should be 33

Ans 12:

Class : Class 5
It is not wrong moon divide by star is 3 moon multiply by moon is 324 3star multiply 3star is 324 star .star equals 324/9 is 36 star - 6 moon equals 18 answer is 12

Ans 13:

Class : Class 7
the answer is 108

Ans 14:

Class : Class 4
the answer should 107

Ans 15:

Class : Class 3

Ans 16:

Class : Class 8
It is NOT out of syllabus . The sulution is that one moon is 18.So,18x18=324.To get the star devide 18 by 3=6.18-6=12

Ans 17:

Class : Class 7

Ans 18:

Class : Class 3
I think, it is too much to ask 3rd class student to remember squares of 18.. imagine if kid is not able to identify m * m = 324, how would he be able to solve entire question. not fair!!

Ans 19:

Class : Class 8
out of syallabus

Ans 20:

Class : Class 3
pls explain

Ans 21:

Class : Class 6
it is a little tricky but i solved it.

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 4
There is no need to do the second part.The first answer is 20L which is 20,000ml. And there is only one option with that answer, which is A,

Ans 3:

Class : Class 6
Option A)

Ans 4:

Class : Class 6
Ans is A because the answer of question (A) will be 20000 ml because 40 l-20 l=20 l. Now convert 20 l to ml, which is 20000 ml, or, you can say that 20 l and 40 l will be 20000 ml and 40000 ml, respectively. Now do 20000 ml-40000 ml=20000ml. answer of question (B) will be 7/26 by adding the capacity of petrol of April, May, June, July and August, which will be 10 l+20 l+ 25 l+35 l+40 l=130 l. In July, the capacity of petrol used was 35 l, so in fraction, it will be 35 l/130 l. Now simplify the fraction, which will be 7 l/26 l.

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
x = 13

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9

Ans 2:

Class : Class 9
sup how's life

Ans 3:

Class : Class 9
my name is khallel i am like a happy meal

Ans 4:

Class : Class 9

Ans 5:

Class : Class 10

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Option B)

Ans 2:

Class : Class 5
out of sylabus

Ans 3:

Class : Class 7
b

Ans 4:

Class : Class 6
Ans is B because 328 tenths will be 32.8 as tenths place is the first place after the decimal point and 4587 thousandths will be 4.587 as thousandths place is the third place after the decimal point. 32.8-4.587=32.800-4.587=28.213. The product of 28.213 and 5 will be 141.065. We are rounding 141.065 to 1 place after the decimal point, which means that we are rounding 141.065 to its nearest tenth, so the answer will be 141.1.

Ans 5:

Class : Class 9
It is b i am sure i

Ans 6:

Class : Class 7
B

Ans 7:

Class : Class 7
c127.1 plus 12.1 = 139.2

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
yes pls

Ans 2:

Class : Class 7
I am demanding for the steps

Ans 3:

Class : Class 7
may I get the method

Ans 4:

Class : Class 6
steps pls!

Ans 5:

Class : Class 6
pls tell the steps

Ans 6:

Class : Class 7
pls tell the steps

Ans 7:

Class : Class 6
I dont understand. Can you please explain the steps. even the solution is confusing.

Ans 8:

Class : Class 8

Ans 9:

Class : Class 7
answer is A..23

Ans 10:

Class : Class 7
ERROR .

Ans 11:

Class : Class 6
very difficult question. proud of you

Ans 12:

Class : Class 6

Ans 13:

Class : Class 6
wrong

Ans 14:

Class : Class 7

Ans 15:

Class : Class 1
can i get the method

Ans 16:

Class : Class 9
there's an error

Ans 17:

Class : Class 7

Ans 18:

Class : Class 7
THE ANSWER WILL BE 26, WHICH IS NOT AN OPTION

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
Answer should be 7:30 if slower 30 mnts.

Ans 2:

Class : Class 4
Thank you dveep jain.

Ans 3:

Class : Class 5

Ans 4:

Class : Class 4
ANSWER NOT GIVEN!!!!!!

Ans 5:

Class : Class 7

Ans 6:

Class : Class 5
okay

Ans 7:

Class : Class 4
Sorry I meant I chose option D) 6:30 p.m. not C.

Ans 8:

Class : Class 4
the clock was not accurate. the hr hand was at 4 when the minute hand was at 9! But the hour hand is supposed to be between x ad x 1(x is hour) if y(minute hand number) is grater than 6. But the picture does not follow that rule and thus the picture is wrong.

Ans 9:

Class : Class 4
Can somebody report an error? Reason: the clock was not accurate. the hr hand was at 4 when the minute hand was at 9! But the hour hand is supposed to be between x ad x 1(x is hour) if y(minute hand number) is grater than 6. But the picture does not follow that rule and thus the picture is wrong.

Ans 10:

Class : Class 4
Can somebody report an error? Reason: the clock was not accurate. the hr hand was at 4 when the minute hand was at 9! But the hour hand is supposed to be between x ad x 1(x is hour) if y(minute hand number) is grater than 6. But the picture does not follow that rule and thus the picture is wrong.

Ans 11:

Class : Class 4
Answer is D because the time he started his homework was 3:45 not 4:45

Ans 12:

Class : Class 4
Ya. I decided to choose option C though even though I realized it was 7:30 p.m . I mean if the clock time was true in the picture, the answer would be 7:00 p.m. They did not mention whether the clock time was true or not

Ans 13:

Class : Class 5
THE ANSWER IS NOT GIVEN

Ans 14:

Class : Class 7
Correct option is not given.If Initial time is 4:45, Time taken = 2 hr 15 mins, Actual final time = 7:00 then Clock will show = 7:30 as clock is slower by 30 mins.

Ans 15:

Class : Class 5
THE ANSWER IS NOT GIVEN IN THE OPTIONS THE CORRECT ANSWER IS 7 : 30

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
The triangle's value is the seventh multiple of seven which is 49.So we can do 49 - 4 to get the square's value.49 - 4 is 45,so the value of the square is 45.Now 45 divided by 15 is 3 ,so the answer is B

Ans 3:

Class : Class 4

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