International Maths Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Post Your Answer

Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
how is the answer C ?

Ans 2:

Class : Class 6
please xplain this question

Ans 3:

Class : Class 10

Ans 4:

Class : Class 5
I dont see how option C is the correct option

Ans 5:

Class : Class 9
answer is option c

Ans 6:

Class : Class 10

Post Your Answer

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?

Post Your Answer

Subject :IMO    Class : Class 5

Ans 1:

Class : Class 7
Incomplete question .this had never happened before:(

Ans 2:

Class : Class 6
Wrong question. I expected more accurate question.

Ans 3:

Class : Class 5
Incomplete que

Ans 4:

Class : Class 4
incomplete question

Ans 5:

Class : Class 6
incomplete

Ans 6:

Class : Class 5

Ans 7:

Class : Class 6
incompete question

Ans 8:

Class : Class 7

Ans 9:

Class : Class 6

Ans 10:

Class : Class 6
SOF IS THE WORST

Ans 11:

Class : Class 8
I am speechless

Ans 12:

Class : Class 7

Ans 13:

Class : Class 5
This is an incomelete question!!!!!!!!!!!!

Ans 14:

Class : Class 7
incomplete q

Ans 15:

Class : Class 6

Ans 16:

Class : Class 6
I AGREE WITH YOU GUYS

Ans 17:

Class : Class 7
SOF you are the worst olympiad trainer

Ans 18:

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

Ans 19:

Class : Class 7
question is completed in pdf

Ans 20:

Class : Class 8
incomplete question, no solution

Ans 21:

Class : Class 7

Ans 22:

Class : Class 9

Ans 23:

Class : Class 4
Incomplete Question.

Ans 24:

Class : Class 6
Incomplete question.

Ans 25:

Class : Class 7

Ans 26:

Class : Class 8

Ans 27:

Class : Class 7
incomplete question with no solution

Ans 28:

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

Ans 29:

Class : Class 7
incomplete question

Ans 30:

Class : Class 8
Incomplete question

Post Your Answer

Subject :IMO    Class : Class 5

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 6

Post Your Answer

Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
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 6
c

Ans 3:

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 4:

Class : Class 6
Its C

Ans 5:

Class : Class 8
and should be c

Ans 6:

Class : Class 9

Ans 7:

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

Ans 8:

Class : Class 6
The CORRECT answer is CCCCCCCCCCC mr SOF

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
c

Ans 11:

Class : Class 6
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 12:

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 13:

Class : Class 9
The answer is (c)

Ans 14:

Class : Class 6
Ans is (c).

Ans 15:

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 16:

Class : Class 6
THE ANSWER IS - B

Ans 17:

Class : Class 7

Ans 18:

Class : Class 6
Ans c only makes sense

Ans 19:

Class : Class 6
THE ANSWER SHOULD BE (B) PLEASE VERIFY SOF!!!!

Ans 20:

Class : Class 6

Ans 21:

Class : Class 6
the answer should be option C

Ans 22:

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 23:

Class : Class 5
correct ans. should be C

Ans 24:

Class : Class 9

Ans 25:

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 26:

Class : Class 6
Ans should be (c)

Ans 27:

Class : Class 7
Answer should be C

Ans 28:

Class : Class 7

Ans 29:

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

Ans 30:

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

Ans 31:

Class : Class 9
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 32:

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

Ans 33:

Class : Class 6
The and should be C

Ans 34:

Class : Class 8
correct ans. should be C

Ans 35:

Class : Class 7
ans should be c

Ans 36:

Class : Class 7
answer should be c not b

Ans 37:

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

Ans 38:

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 39:

Class : Class 5
answer should be c

Ans 40:

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 41:

Class : Class 7
ans should be C

Ans 42:

Class : Class 8

Ans 43:

Class : Class 7
in synopsis its given that the place value decreases by 10

Post Your Answer

Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
thank you

Ans 2:

Class : Class 4
b

Ans 3:

Class : Class 5
b

Ans 4:

Class : Class 6
The answer is B but if anyone has doubt , please call 9243729047 . I will explain it briefly to you .

Ans 5:

Class : Class 2
C

Ans 6:

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 7:

Class : Class 3
Ya B

Post Your Answer

Subject :IMO    Class : Class 5

Post Your Answer