International Maths Olympiad Forum By SOF Olympiad Trainer - Page 691

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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 8
how is the answer C ?

Ans 2:

Class : Class 10

Ans 3:

Class : Class 9
please xplain this question

Ans 4:

Class : Class 9
answer is option c

Ans 5:

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

Ans 6:

Class : Class 8
Very complicated answer shown

Ans 7:

Class : Class 8
I think the answer should be B

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 8

Ans 2:

Class : Class 6
Incomplete question.

Ans 3:

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

Ans 4:

Class : Class 10
incomplete q

Ans 5:

Class : Class 9
Incomplete Question.

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
incomplete question

Ans 8:

Class : Class 7
SOF IS THE WORST

Ans 9:

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

Ans 10:

Class : Class 10

Ans 11:

Class : Class 7

Ans 12:

Class : Class 8
I am speechless

Ans 13:

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

Ans 14:

Class : Class 10
question is completed in pdf

Ans 15:

Class : Class 6

Ans 16:

Class : Class 7
I AGREE WITH YOU GUYS

Ans 17:

Class : Class 8
SOF you are the worst olympiad trainer

Ans 18:

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

Ans 19:

Class : Class 10
Incomplete question

Ans 20:

Class : Class 8
incomplete question with no solution

Ans 21:

Class : Class 8
incomplete question, no solution

Ans 22:

Class : Class 9

Ans 23:

Class : Class 5
Incomplete que

Ans 24:

Class : Class 5

Ans 25:

Class : Class 6
This is an incomelete question!!!!!!!!!!!!

Ans 26:

Class : Class 4
incomplete question

Ans 27:

Class : Class 6
incompete question

Ans 28:

Class : Class 7

Ans 29:

Class : Class 10

Ans 30:

Class : Class 6
incomplete

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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

Post Your Answer

Subject :IMO    Class : Class 6

Ans 1:

Class : Class 10
answer should be c

Ans 2:

Class : Class 6
The CORRECT answer is CCCCCCCCCCC mr SOF

Ans 3:

Class : Class 7
Remember LEFT TO RIGHT

Ans 4:

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

Ans 5:

Class : Class 6
c

Ans 6:

Class : Class 8

Ans 7:

Class : Class 9
and should be c

Ans 8:

Class : Class 10

Ans 9:

Class : Class 6
Ans should be (c)

Ans 10:

Class : Class 10

Ans 11:

Class : Class 8
look at solution please

Ans 12:

Class : Class 7
ans should be C

Ans 13:

Class : Class 6
the answer should be option C

Ans 14:

Class : Class 7
Answer should be C

Ans 15:

Class : Class 10
The answer is (c)

Ans 16:

Class : Class 6
Ans c only makes sense

Ans 17:

Class : Class 7
ans should be cccc.

Ans 18:

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 19:

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 20:

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

Ans 21:

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 22:

Class : Class 6
The and should be C

Ans 23:

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 24:

Class : Class 7
ans should be c

Ans 25:

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 26:

Class : Class 7

Ans 27:

Class : Class 5
correct ans. should be C

Ans 28:

Class : Class 7
decreasing by 1/10 is not possible . the answer should be (c)

Ans 29:

Class : Class 8
correct ans. should be C

Ans 30:

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

Ans 31:

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 32:

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 33:

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 34:

Class : Class 7
c

Ans 35:

Class : Class 8
c

Ans 36:

Class : Class 9
Its C

Ans 37:

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 38:

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

Ans 39:

Class : Class 10
c

Ans 40:

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

Ans 41:

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

Ans 42:

Class : Class 8
C

Ans 43:

Class : Class 6
Ans is C, the most sigma

Ans 44:

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 45:

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

Ans 46:

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 47:

Class : Class 10

Ans 48:

Class : Class 6
Ans is (c).

Ans 49:

Class : Class 7
Answer should be C

Ans 50:

Class : Class 7

Ans 51:

Class : Class 8
answer should be c not b

Ans 52:

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 53:

Class : Class 7
Cccc!

Ans 54:

Class : Class 9
THE ANSWER IS - B

Ans 55:

Class : Class 10

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 3
Ya B

Ans 2:

Class : Class 4
b

Ans 3:

Class : Class 4
B

Ans 4:

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.

Ans 5:

Class : Class 9
thank you

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 5
b

Ans 8:

Class : Class 2
C

Ans 9:

Class : Class 5

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Subject :IMO    Class : Class 5

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