International Maths Olympiad Forum By SOF Olympiad Trainer - Page 450

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6

Ans 5:

Class : Class 6

Ans 6:

Class : Class 5

Ans 7:

Class : Class 6
Answer should be d as per me

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Subject :IMO    Class : Class 10

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Subject :IMO    Class : Class 10

Ans 1:

Class : Class 8
C

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Subject :IMO    Class : Class 10

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 5
The option is A. Calculation mistake by SOF. My marks should be 54, not 53

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
I think so it is 10

Ans 4:

Class : Class 9

Ans 5:

Class : Class 6
The answer should be 10 which is option A

Ans 6:

Class : Class 6
The ans in 12

Ans 7:

Class : Class 6
12

Ans 8:

Class : Class 8
12 is correct as there are 2 right angles also

Ans 9:

Class : Class 8

Ans 10:

Class : Class 6
10

Ans 11:

Class : Class 8
it's 12 as angle BAC and angle ACD are right angles, and nee to be counted.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
The correct answer is D as24 cm on map= 360 kmSo ratio of distance between map and actual distance on ground= 24:360 = 1:15

Ans 2:

Class : Class 7
THE CORRECT ANSWER SHOULD BE D

Ans 3:

Class : Class 7
The correct ans is A as you have to convert km to cm

Ans 4:

Class : Class 7
Answer is d as it is distance in cm on map and km in real

Ans 5:

Class : Class 6
A IS CORRECT AS RATIO HAS BOTH TERMS IN SAME UNIT. SO CM SHOULD BE CONVERTED TO KM.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
Solution and explanations please....

Ans 3:

Class : Class 7
Actually, it was a pretty simple problem.1. Divide 1901 by 6 (which is equal to 316)2. Since there is a remainder, 317(316 1) times 6 gives you the first number divisible by 6 within the range.3. Next, divide 2000 by 6 (which is 333), similarly, 333 times 6 gives you the last number divisible by 6 within this range.The answer is 17 not 16 because there are 17 numbers which are divisible by 6: -317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332, 333Hope this is helpful.Thanks

Ans 4:

Class : Class 9

Ans 5:

Class : Class 3

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 10
i think the answer is 10u as- breadth=u so length=4u perimeter=2(l+b)=2(4u+u)==2*5u=10u

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Subject :IMO    Class : Class 6

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