International Maths Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
Exactly. How?!

Ans 2:

Class : Class 8
how

Post Your Answer

Subject :IMO    Class : Class 8

Post Your Answer

Subject :IMO    Class : Class 3

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
the answer is obviously D.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
how is it admin

Ans 5:

Class : Class 6
the answer is obviously D.

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 7
the answer is wrong . the answer is c

Post Your Answer

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

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
so easy

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 6
It is A

Ans 3:

Class : Class 5

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 8

Ans 1:

Class : Class 3

Post Your Answer