International Maths Olympiad Forum By SOF Olympiad Trainer - Page 798

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
in my opinion the answer should be D

Ans 2:

Class : Class 10
My answer is D

Ans 3:

Class : Class 7
Answer to this should be D.C cannot be the correct answer.

Ans 4:

Class : Class 5
I agree with you because 2000> 1710> 1460> 1049> 951> 60 and not 60> 951> 1460> 1049> 2000> 1710.

Ans 5:

Class : Class 9
Yes correct answer is D. What they have given is wrong

Ans 6:

Class : Class 5
I agree with you because D is correct.

Ans 7:

Class : Class 8
the answer is = [ D ] MM = 2000 MDCCX = 1680 MCDLX = 1459 MXLIX = 1049 CMLI = 951 LX = 60

Ans 8:

Class : Class 6
The answer will be option D.

Ans 9:

Class : Class 3
yes i agree

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 7
there are so many wrong questions like this in sof. i request all to contact all to sof

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 10
Answer:B

There was a mistake in the options. It has been corrected now.
Solution
1535+279 = 1814
1984-164 = 1820
Even number between 1814 and 1820 are 1816 and 1818
Sum of 1816 + 1818 = 3634

Ans 2:

Class : Class 10
Answer:B

There was a mistake in the options. It has been corrected now.
Solution
1535+279 = 1814
1984-164 = 1820
Even number between 1814 and 1820 are 1816 and 1818
Sum of 1816 + 1818 = 3634

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 4
It is very horrified that answer given is wrong..............should be B.

Ans 3:

Class : Class 5
Answer is B

Ans 4:

Class : Class 8
kushaan is correct.Answer is B.Their answer is incorrect.SOF ofte makes mistakes.It is very bad

Ans 5:

Class : Class 7
The answer given by SOF is wrong.Please don't confuse us.

Ans 6:

Class : Class 8
Answer is A

Ans 7:

Class : Class 7
(B)

Ans 8:

Class : Class 3
Yes I agree with Sanjivani Saha that Kushan is correct The answer given by SOF is wrong

Ans 9:

Class : Class 1
The answer is "B".sofor is wrong

Ans 10:

Class : Class 3
only A is correct as term respectively is used

Ans 11:

Class : Class 5
Answer is b. Their answer is wrong

Ans 12:

Class : Class 7
the answer is (B)

Ans 13:

Class : Class 6
both answers A

Ans 14:

Class : Class 3
answer is wrong because given term respectively is givenabhishree singh lucknow india

Ans 15:

Class : Class 3
Answer is A because it is written respectively

Ans 16:

Class : Class 3
it was a trick question and answer should be D only

Ans 17:

Class : Class 2
Answer is B only as it is written respectively and accordingly and - signs are shown.

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Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1
There are 25 hexagons in the figure. For 2/5 to be left unshaded, 3/5 of them must be shaded. Now, total no. of hexagons which must be shaded are:- (3/5)x25=15

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
Answer is 4 option B

Ans 2:

Class : Class 6
Correct Answer is D. Q is 4, hence, 6 less than 10.

Ans 3:

Class : Class 3
Answer should’ve been D

Ans 4:

Class : Class 3
4 should’ ve been the answer given by them

Ans 5:

Class : Class 5
The answer is D. Value of Q is 4 and 4 is 6 less than 10.

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
good

Ans 2:

Class : Class 3
The logic is simple here.. Rohan delivers newspapers on weekdays (i.e) Monday to Friday. The only condition that would address the number of papers delivered on Sunday is if he deliver's 14 more papers on Sunday than on weekdays. So the answer is 1.

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
It is 3/20 because- if you add 2/8 and 3/5 =17/20 which he drank =20/20-17/20=3/20

Ans 2:

Class : Class 4
Answer is option B or 3/10

Ans 3:

Class : Class 4
Answer is C

Ans 4:

Class : Class 4
the correct answer is 3/20 which is C

Ans 5:

Class : Class 5

Ans 6:

Class : Class 9
2/8 (=10/40) in the morning left only 6/8 3/5 of 6/8 = 18/40 leftover milk is = 1-(10/40) - (18/40) = 12/40 = 3/10

Ans 7:

Class : Class 9

Ans 8:

Class : Class 5
3/10 is correct

Ans 9:

Class : Class 4
3/10

Ans 10:

Class : Class 6
3/20Thank you Priti Srivastav

Ans 11:

Class : Class 3

Ans 12:

Class : Class 8
3/10

Ans 13:

Class : Class 4
3/20 is correct

Ans 14:

Class : Class 9
blah blah blahwhatever

Ans 15:

Class : Class 5
3/20

Ans 16:

Class : Class 10
Answer : B
Milk left for the evening = 1 - 2/8 = 6/8
Milk consumed in the evening = 3/5 of 6/8 = 3/5 x 6/8 = 18/40
Total milk consumed = 2/8 + 18/40 = 28/40
Milk left = 1 -28/40 = 12/40 = 3/10

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
D part

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