International Maths Olympiad Forum By SOF Olympiad Trainer - Page 366

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
Both A and B is correct as it depends that that how the Dice is tilted with 5 dots on upper side

Ans 2:

Class : Class 6
A is the correct awnser@

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6

Ans 5:

Class : Class 9
It should be A

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8
it will be athe 5 dots is on the side and the 3 side toothe 1 side will face up if the 2 side is facing at bottom

Ans 8:

Class : Class 6
The opposite sides of the dice when added are 7 so if 2 dots are at the bottom 5 dots should be on the top.

Ans 9:

Class : Class 8
the answer is a but it is written b

Ans 10:

Class : Class 8
logically 1 will be up so its a not b

Ans 11:

Class : Class 7
it will be a

Ans 12:

Class : Class 6
It should be 5 dots, as we know that the dots on opposite sides add up to 7. But, even if we go according to the figures given, it is clearly 1 dot.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 7
SUS

Ans 2:

Class : Class 5
THE CORRECT ANSWER IS ANSWER OPTION C BECAUSE MMMMDCCCI=4701 AND MMMMDCCCI=4801. So ,4701+4801=9502. Some people say that a roman numeral cant be repeated more than 3 times but in fact ( in rare cases )they can be used more than 3 times. like 4000 IS WRITTEN AS MMMM. THANK YOU FOR READING THIS !

Ans 3:

Class : Class 9
The question itself is wrong

Ans 4:

Class : Class 9
Reason is that the rule is that we can't repeat a symbol more than 3 times

Ans 5:

Class : Class 8
c 9502

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
A Monday is the answer

Ans 2:

Class : Class 3
a

Ans 3:

Class : Class 4
Answer is A) How? The question is if day before yesterday was a Thursday so day after tomorrow today is which day. so today will be a Saturday and day after tomorrow will be a Monday, now let’s hear the options . A) Monday B) Sunday C) Wednesday D) Friday So the option which has the day Monday is option A). So the answer is A)

Ans 4:

Class : Class 4
Answer:A

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
Answer:A

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 9
yes it is difficult.

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6
ans should be all of thesestupid]

Ans 4:

Class : Class 4
oh what a stupid question is this

Ans 5:

Class : Class 6
It is easy. The question is saying A minus 5 (A-5) As Anny is A, and Tarun is 5 years younger, it is A-5 b)

Ans 6:

Class : Class 5

Ans 7:

Class : Class 6
too confusingplease explain

Ans 8:

Class : Class 9
If Annys age = A,Taruns age ( 5 years less than Anny) = A-5....hence answer is B

Ans 9:

Class : Class 6
b is the answer to easy

Ans 10:

Class : Class 5

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1

(A): Prime numbers have least number of factors. Hence, 17 has least factors as it is prime number.


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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9

Ans 2:

Class : Class 4
You see, that P= 6 because the only number whose ones place is 6' and it is in 6's table it is 6x6=36. And 6x1 is also 6 but then it would not follow the criteria because the number's ones is 3. So it needs to be a carry. Now Q= 2 it is simple. After q we will continue the multiplication, and the answer is 20. The zero is also give so.... Q=2. Now R, so we are at the last place which is adding so 7 5 0= 12 , 1 is the carry now Q(2) 6 3 1(carry ) which is 12. The tens place stays and ones is the carry. So 2 is R. And P Q=8.

Ans 3: (Master Answer)

Class : Class 1

(B): From the given calculation
P = 6; Q = 2; R = 2; P + Q = 8


Ans 4:

Class : Class 9

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