International Maths Olympiad Forum By SOF Olympiad Trainer - Page 732

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Subject :IMO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
answer is option c

Ans 2:

Class : Class 8
Very complicated answer shown

Ans 3:

Class : Class 8
how is the answer C ?

Ans 4:

Class : Class 7
I dont see how option C is the correct option

Ans 5:

Class : Class 9
I think the answer should be B

Ans 6:

Class : Class 9
please xplain this question

Ans 7:

Class : Class 10

Ans 8:

Class : Class 10

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
a

Ans 2:

Class : Class 3
it is 18 and 8

Ans 3:

Class : Class 6
SHOULD BE 18?

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
incompete question

Ans 2:

Class : Class 10

Ans 3:

Class : Class 6

Ans 4:

Class : Class 6
this question is wrong because you have only given the cost of the first hour

Ans 5:

Class : Class 7
I AGREE WITH YOU GUYS

Ans 6:

Class : Class 8

Ans 7:

Class : Class 8
Incomplete question .this had never happened before:(

Ans 8:

Class : Class 5
Incomplete que

Ans 9:

Class : Class 7
incomplete question

Ans 10:

Class : Class 6
incomplete

Ans 11:

Class : Class 8
Wrong question. I expected more accurate question.

Ans 12:

Class : Class 9
This is an incomelete question!!!!!!!!!!!!

Ans 13:

Class : Class 5

Ans 14:

Class : Class 9

Ans 15:

Class : Class 10

Ans 16:

Class : Class 8
incomplete question, no solution

Ans 17:

Class : Class 5
incomplete question .can not find the answer

Ans 18:

Class : Class 6
Incomplete question.

Ans 19:

Class : Class 10
incomplete q

Ans 20:

Class : Class 8
SOF you are the worst olympiad trainer

Ans 21:

Class : Class 7

Ans 22:

Class : Class 7
SOF IS THE WORST

Ans 23:

Class : Class 4
incomplete question

Ans 24:

Class : Class 10
question is completed in pdf

Ans 25:

Class : Class 8
incomplete question with no solution

Ans 26:

Class : Class 7

Ans 27:

Class : Class 8
I am speechless

Ans 28:

Class : Class 8

Ans 29:

Class : Class 10
Incomplete question

Ans 30:

Class : Class 9
Incomplete Question.

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Subject :IMO    Class : Class 5

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
The answer is B cause they are saying step by step from LEFT to RIGHT that means it is increasing but as they have said decreasing the answer is B . eg- 10 increases by 10 when it goes from tens to hundred. So it decreases by this formula - 10 divided by 1/10 ( dividing a whole number by a fraction = whole number X the reciprocal of the fraction) = 10x10 = 100

Ans 2:

Class : Class 8
c

Ans 3:

Class : Class 7
the answer is C.. B is the wrong answer . if we have to move the digits from left to right we should multiply and not divide.. please clarify SOF..

Ans 4:

Class : Class 8
answer should be c not b

Ans 5:

Class : Class 7
Answer should be C

Ans 6:

Class : Class 6
c

Ans 7:

Class : Class 6
the answer should be option C

Ans 8:

Class : Class 6
Ans should be (c)

Ans 9:

Class : Class 6
The correct answer is C as 100/10 is 10, 1000/100 is also 10.

Ans 10:

Class : Class 7
ans should be C

Ans 11:

Class : Class 7
Remember LEFT TO RIGHT

Ans 12:

Class : Class 8
Decreases means division and increases means multiplication.Over here it says decreases and therefore it is division.For example let us take 100.(B) 100/ 1/10 = 100 * 10 = 1000(C)100/10 = 10Therefore,C is correct as 1 moves from left to right.

Ans 13:

Class : Class 9
I think answer is B.....as we have to divide the digit by number 10 each time we move from left to right .....and so its value decreases eg 500 is divided by 10 (500*1/10 = 50) to make its place value from hundred to tens

Ans 14:

Class : Class 7

Ans 15:

Class : Class 6
Ans is (c).

Ans 16:

Class : Class 6
Ans c only makes sense

Ans 17:

Class : Class 6
Ans is C, the most sigma

Ans 18:

Class : Class 10
c

Ans 19:

Class : Class 9
As he is saying times, it should be 10 and not 1/10. So, answer should be C

Ans 20:

Class : Class 10

Ans 21:

Class : Class 8
ans should be cccc.

Ans 22:

Class : Class 9
THE ANSWER IS - B

Ans 23:

Class : Class 9
in synopsis its given that the place value decreases by 10

Ans 24:

Class : Class 6
the correct answer is [B] because if we take a no. as 10.ok.then i am doing like example see- 10X1/10 so it is =1 so it decreased

Ans 25:

Class : Class 10

Ans 26:

Class : Class 8
c

Ans 27:

Class : Class 8
The correct answer is (C) because the question asks you by how many times it is DECREASING from LEFT TO RIGHT . If it said increasing, then the answer would be (B)

Ans 28:

Class : Class 8
ans. should be [C].

Ans 29:

Class : Class 10

Ans 30:

Class : Class 6
answer should be C because it already says the word divide and if we write ans as B then it will become ( eg. 100/1/10 = 1000) hence it should be ( eg. 100/10 = 10) . PLS CORRECT IT SOF !!!!!

Ans 31:

Class : Class 9
decreasing by 1/10 is not possible . the answer should be (c)

Ans 32:

Class : Class 7
ans should be c

Ans 33:

Class : Class 10

Ans 34:

Class : Class 6
My explaination is when we decrease a number by 1/10 times example 100 / 1/10 = 1000 so it increases by 10. If in place of decrease it was increase then b would be the answer but actual answer is c.

Ans 35:

Class : Class 7
Cccc!

Ans 36:

Class : Class 6
The answer is c. It decreases by 1 by 10 when it goes from right to left, not from left to right.

Ans 37:

Class : Class 5
correct ans. should be C

Ans 38:

Class : Class 7
answer should be Cas 100 /10 is 10

Ans 39:

Class : Class 9
and should be c

Ans 40:

Class : Class 6
how can it decrease by 1/10. it changes by 1/10 and decreases by 10 times answer should be C

Ans 41:

Class : Class 10
answer is bwhen we move from left to rightexample-1000 to 100how do you get 100 by dividing it by 10 right?i.e 1000/10 = 100answer = 1/10

Ans 42:

Class : Class 6
The and should be C

Ans 43:

Class : Class 7

Ans 44:

Class : Class 9
Its C

Ans 45:

Class : Class 6
The CORRECT answer is CCCCCCCCCCC mr SOF

Ans 46:

Class : Class 9
THE ANSWER SHOULD BE (B) PLEASE VERIFY SOF!!!!

Ans 47:

Class : Class 8
C

Ans 48:

Class : Class 8
it should be B as it is decreased by not increased if it was increased than it was 10

Ans 49:

Class : Class 8
c is right because we have to multiply cause we are given times.. 1000x___= 100... so we get 1000/10= 10 so c is right

Ans 50:

Class : Class 7
Answer should be C

Ans 51:

Class : Class 10
The answer is (c)

Ans 52:

Class : Class 8
correct ans. should be C

Ans 53:

Class : Class 8
look at solution please

Ans 54:

Class : Class 10
answer should be c

Ans 55:

Class : Class 8

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
b

Ans 2:

Class : Class 5
b

Ans 3:

Class : Class 4
B

Ans 4:

Class : Class 3
Ya B

Ans 5:

Class : Class 5

Ans 6:

Class : Class 9
The answer is B but if anyone has doubt , please call 9243729047 . I will explain it briefly to you .

Ans 7:

Class : Class 2
C

Ans 8:

Class : Class 9
thank you

Ans 9:

Class : Class 7
hey , it is 90 tenths cause tenths means at the tenths place only . But if if there is another no. like 90 tenths we should multiply . But if you choose hundredth tenths it it will become in thousands value.

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