International Maths Olympiad Forum By SOF Olympiad Trainer - Page 359

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
C

Ans 2:

Class : Class 6
I couldn't even see the full question

Ans 3:

Class : Class 7
c

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 9
Yeah. They only in one of their questions explained this concept and now themselves are telling the wrong answer. Ans is option D.

Ans 2:

Class : Class 9
Ams is d

Ans 3:

Class : Class 8
the answer is d)

Ans 4:

Class : Class 8
Answer is d

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6

Ans 2:

Class : Class 6
It is Option A

Ans 3:

Class : Class 7

Ans 4:

Class : Class 9
x = 2k/3 and Y = 8k/5Therefore, x : y= x/y = (2k/3)/(8k/5)= (2k/3) *(5/8k)On cancelling, 2k with 8k, we get= (1/3) * (5/4) = 5/12Thus, x:y = 5:12Answer - (C)

Ans 5:

Class : Class 9

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
So Easy!

Ans 2:

Class : Class 8
Everybody knows this

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
Subtract the number of females from whole population. :)

Ans 5:

Class : Class 6
Solved in 15 seconds. It was so easy! ;)

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6
this i the most easiest question . solved it in 10 sec lol :)

Ans 8:

Class : Class 6
Yup !

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

(B): 6th multiple of 7 = 42
10th multiple of 7 = 70
Now,  = 2 × (70 - 42) = 2 × 28 = 56


Ans 2:

Class : Class 1
Ans 1 I think u have copied this from the solution. This is the same thing in the solution. No offence.

Ans 3:

Class : Class 1
And I did not understand the solution. So, can u explain it better?

Ans 4:

Class : Class 7

Ans 5:

Class : Class 8
6th multiple of 7 = 4210th multiple of 7 = 7042 - 70 = 2828* 2 = 56So, the correct answer is B.

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Subject :IMO    Class : Class 9

Ans 1:

Class : Class 8

Ans 2: (Master Answer)

Class : Class 1

(D): Division of any two integers is not always an integer.


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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
(D): Time the clock is showing is =5:10Since the clock is 5 minutes slower it is actually 5:15.Rahul went to play at 5:15 and came back home after 25 minutesSo, the lock shows 5:35 so the actual time is 5:40 p.m.

Ans 2: (Master Answer)

Class : Class 1

(D): Time clock showing = 5:10
Since its 5 minutes slower, actual time = 5:15
Rahul went out to play at 5:15, and came back after 25 minutes
Actual time he came back = 5:40 p.m.
 


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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
what if we keep the values of a = 4, b = 8, c = 1, d = 2 . and now try

Ans 2:

Class : Class 8
No, it's answer B.. I would suggest you to take numeric values for a, b, c and d.. Then u will get to know the answer..

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Subject :IMO    Class : Class 6

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