International Maths Olympiad Forum By SOF Olympiad Trainer - Page 355

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 4
THE ANSWER IS (B) AS GIVEN IN THE QUESTION IS 61*82 IS DIVISIBLE BY 11 AS WE KNOW THAT WHEN THE DIFFERENCE BETWEEN THE SUM OF DIGITS IN EVEN AND ODD PLACES IS 0 OR A MULTIPLE OF 11 SO THE MINIMUM VALUE OF * SHOULD BE 1 AS 6 + 1 + 2 = 9 AND 1 + 8 = 9 AND 9 - 9 = 0 HENCE ,IT IS DIVISIBLE BY 11

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5

Ans 3:

Class : Class 9
It is A

Ans 4:

Class : Class 10

Ans 5:

Class : Class 5

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 5
But what about IC. You will not get 99 then, so option C is correct. SOF Olympiad Trainer mistake

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 10
IS ANSWER C 76%. TELL THEN I WILL TELL YOU THE SOLUTION.

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
(B):Total number of equal parts =15 Number of unshaded parts =9 Unshaded fraction=9/15

Ans 2: (Master Answer)

Class : Class 1

(B): Total number of equal parts = 15
Number of unshaded parts = 9
Unshaded  fraction = 9/15
 


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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 10
The answer is 36,48,60.

Ans 2:

Class : Class 10
The answer is 36,48,60.

Ans 3:

Class : Class 9
solution please

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
ans d 9

Ans 2: (Master Answer)

Class : Class 1

(C): 


Possible ways are
ABCDEFGH, ABCDJKGH, ABCDGH, ACDEFGH, ACDJKGH, ACDGH, AICDEFGH, AICDJKGH, AICDGH.
Total number of ways = 9.


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