International Maths Olympiad Forum By SOF Olympiad Trainer - Page 714

User Forum

Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
the answer is incorrect. It should be 12-11 = 1

Ans 2:

Class : Class 2

Ans 3:

Class : Class 2
Solution is wrong

Ans 4:

Class : Class 4
ANS. WRONG STRAIGHT LINES-12 TRIANGLES-11 12-11=1

Ans 5:

Class : Class 7
answer is wrong

Ans 6:

Class : Class 8
yes, it should be 12-11 = 1

Ans 7:

Class : Class 5
the answer is b 2

Ans 8:

Class : Class 4
solution is wrong

Ans 9:

Class : Class 5

Ans 10:

Class : Class 4

Ans 11:

Class : Class 4
yes 12-11 = 1 is the solution

Ans 12:

Class : Class 8
yes it is 12 - 11 solution is wrong

Ans 13:

Class : Class 8

Ans 14:

Class : Class 7
Answer should be D.

Ans 15:

Class : Class 8
the answer is incorrect 12-11=1

Ans 16:

Class : Class 2
Yes, 12-11=1The answer given is wrong

Ans 17:

Class : Class 1
answer is 12-11=1

Ans 18:

Class : Class 3
yes you are right

Ans 19:

Class : Class 3

Ans 20:

Class : Class 4
Yes number of straight line is 12 and number of triangle is 11 so 12-11=1

Ans 21:

Class : Class 4

Ans 22:

Class : Class 8
Ans. is 12-11=1

Ans 23:

Class : Class 3

Ans 24:

Class : Class 4
12-11=1, so the answer should be D.

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 10
Number of Rs. 10 Notes only: 260/10 = 26 Number of Rs. 5 Notes only: 260/10 = 52 Therefore Rs. 5 notes more than Rs. 10, 52-26=26 Option (B)

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
AFTER THE SOLUTION I FOUND IT VERY EASY

Ans 4:

Class : Class 8

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
answer is 11/20 as if unshaded is less than 1/2 we take it as 1/2 if it is more than 1/2 then we take it as 1 but if it is 1/2 we take it as 1/2 now count all of unshaded boxes you will get the answer

Post Your Answer

Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
Add up the speeds and multiply with time as trains are in opposite directions.Then subtract the length of the first train. Ans -1000m

Ans 2:

Class : Class 8
Relative velocity of two trains is 384km/hr=320/3 m/sec. Therefore,it can travel 1600m in 15 sec. Therefore, the length of the second train is (1600-600)m=1000m

Ans 3:

Class : Class 8
1000m

Post Your Answer

Subject :IMO    Class : Class 8

Ans 1:

Class : Class 9
Let the ages of A, B and C be a years, b years and c years respectively. (a + b) is 12 greater than (b + c) => 12 + b + c = a + b => 12 + c = a => 12 = a - c So, C is younger than A by 12 years Answer is A

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 9

Post Your Answer

Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

Post Your Answer

Subject :IMO    Class : Class 3

Ans 1:

Class : Class 8
i do not understand!!!!!!!!!!

Post Your Answer

Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 3
Ans should be B with AB=BC as per question given.

Ans 3:

Class : Class 7
the ans is B

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
YES TRUE

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8
it should be B

Ans 8:

Class : Class 10
AB =BC So BE is the answer

Ans 9:

Class : Class 9
Answer should be B. Because BE divides the triangle ABC into two equal triangle.

Ans 10:

Class : Class 6
It has to be BE. The given coondition is AB =BC not AB=AC

Post Your Answer