International Maths Olympiad Forum By SOF Olympiad Trainer - Page 875

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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 9
the answer is (B)

Ans 2:

Class :

Ans 3:

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

Ans 4:

Class : Class 6
both answers A

Ans 5:

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

Ans 6:

Class :
Answer is B

Ans 7:

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

Ans 8:

Class : Class 9
(B)

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

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

Ans 16:

Class : Class 8
Answer is A

Ans 17:

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

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Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Class :
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 :
Answer is 4 option B

Ans 2:

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

Ans 3:

Class : Class 5
Answer should’ve been D

Ans 4:

Class : Class 5
4 should’ ve been the answer given by them

Ans 5:

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

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Subject :IMO    Class : Class 3

Ans 1:

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

Ans 2:

Class :
3/20

Ans 3:

Class : Class 9
blah blah blahwhatever

Ans 4:

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

Ans 5:

Class : Class 5
3/10 is correct

Ans 6:

Class : Class 6
3/20Thank you Priti Srivastav

Ans 7:

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

Ans 8:

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 9:

Class : Class 5
Answer is C

Ans 10:

Class : Class 9

Ans 11:

Class :
3/20 is correct

Ans 12:

Class : Class 8
3/10

Ans 13:

Class :
3/10

Ans 14:

Class : Class 3

Ans 15:

Class :
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 16:

Class : Class 5

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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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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class :
The correct answer is D.

Ans 2:

Class : Class 10

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