International Maths Olympiad Forum By SOF Olympiad Trainer - Page 575

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
30

Ans 2:

Class : Class 3
30

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
the answer should 14 because as the numbers would be -2 12 21 22 23 24 25 26 27 28 32 42 -14 0nly because it cannot go after 50

Ans 3:

Class : Class 4
14

Ans 4:

Class : Class 7
14

Ans 5:

Class : Class 4
The correct answer is 15,as 22 contains 2 times 2

Ans 6:

Class : Class 6
It should be 15 because numbers are2,12,20,21,22,23,24,25,26,27,28,29,32,42.

Ans 7:

Class : Class 3
its 15!

Ans 8:

Class : Class 3
please give detailed decsription of the answer for this question above.

Ans 9:

Class : Class 4
should be 14

Ans 10:

Class : Class 3
It should be 14. Not 15. As the numbers would be-2,12,20,21,22,23,24,25,26,27,28,29,32,42.

Ans 11:

Class : Class 3
hey raghav

Ans 12:

Class :
36

Ans 13:

Class : Class 9
14

Ans 14:

Class : Class 3
I am also getting 14 but I did wrong😠😠😠👹👹👹👹👹

Ans 15:

Class : Class 9
The answer is b,14 because between 1 to10 1 time, 11 to 20 2 times, 21 to 30 9 times , 30 to 40 1 time, 41 to 50 1 time. Now if we add all of them we get 14. So the answer is 14.

Ans 16:

Class : Class 3
j,bhkn,.j.jk,jj.kjmjkjkjkjk

Ans 17:

Class : Class 4
it has to be 15, 2 is repeated in 22

Ans 18:

Class : Class 3
15

Ans 19:

Class : Class 5
14 is the answer

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 9
A

Ans 2:

Class : Class 3
C is the correct answer

Ans 3:

Class : Class 9
The answer is a as a is 60 and not c. C is 59 so it cannot be the answer. Please change the answer which you have written in correct answer.

Ans 4:

Class : Class 3
Remove this question. The images are not clear and just confusing!! It doesn't test anything.

Ans 5:

Class : Class 3

Ans 6:

Class : Class 8
a

Ans 7:

Class : Class 3
C

Ans 8:

Class : Class 4
C

Ans 9:

Class : Class 4
The picture is so unclear. Question is not fair. I marked A (60) because the question showed the temperature as between 78 and 79.

Ans 10:

Class : Class 4
THE IMAGE SHOWS THE TEMPERATURE AS 78.5 .. THE IMAGE IS NOT CLEAR.. QUESTION IS IN C NOT F.. ANSWER GIVEN IN SOLUTION IS IN F.. OPTIONS ARE ALSO MISTAKEN

Ans 11:

Class : Class 4
The question was so unclear.

Ans 12:

Class : Class 9
The answer is a because it is 60 and not c. C is 59.

Ans 13:

Class : Class 9
A

Ans 14:

Class : Class 5
correct answer is a

Ans 15:

Class : Class 5
c

Ans 16:

Class : Class 3
c

Ans 17:

Class : Class 4

Ans 18:

Class : Class 6

Ans 19:

Class : Class 3
The picture of thermometer is blur.

Ans 20:

Class : Class 6
c

Ans 21:

Class : Class 4

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 4
Answer is 4

Ans 2:

Class : Class 4
The correct answer is 4

Ans 3:

Class : Class 7

Ans 4:

Class : Class 4
Geet modi is a genius

Ans 5:

Class : Class 3

Ans 6:

Class : Class 5
CORRECT Answer is 4

Ans 7:

Class : Class 3
The answer is 4 but they said the value of Q is dash less than 10.

Ans 8:

Class : Class 3
answer is 4

Ans 9:

Class : Class 3
correct answer is 4

Ans 10:

Class : Class 8
answer is 4

Ans 11:

Class : Class 6
correct answer is 4

Ans 12:

Class : Class 4
answer is 4

Ans 13:

Class : Class 7
4 is correct answer

Ans 14:

Class : Class 3
But its answer is 4

Ans 15:

Class : Class 3
the answer is six because 10-4

Ans 16:

Class : Class 7
Ans is 4

Ans 17:

Class : Class 8
yes answer is 4 from Mokshada sikachi

Ans 18:

Class : Class 4
Answer is 4 because when multiple with 23 by 14 we 322

Ans 19:

Class : Class 4

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 2
Ans is not B. Ten thousand is 5 digits place. Answer Should be C. B should be wrong. If they asked for rounding off to Lakhs place, then B is correct.

Ans 2:

Class : Class 6
Option B)

Ans 3:

Class : Class 6
Ans is B because 3645279+2153467=5798746. 5798746 will be rounded to its nearest ten thousand, which is 5800000, since 98746 will be rounded to nearest ten thousand, which is 100000, 1 will be carried to the lakhs place, or, you can say that 3645279 and 2153467 will be rounded to the nearest ten thousand, which will be 3650000 and 2150000, respectively. 3650000+2150000=5800000.

Ans 4:

Class : Class 2
They are asking to round off the final sum, not round off the individual numbers and add. First sum, then round off the sum to nearest ten thousand. So the last 5 digits should be 99000 which is Option C.

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

Ans 2:

Class : Class 8

Ans 3:

Class : Class 8
The answer is 3. When you solve the equation you get 3*3*1*1*2*14/1*1*1. Now we see that the prime numbers left are 3,3 and 2. Therefore there are 3 prime numbers.

Ans 4:

Class : Class 8
The answer is 4. There are 4 prime factors: 2,3,5 and 7

Ans 5:

Class : Class 8
the answer is 7.

Ans 6:

Class : Class 7

Ans 7:

Class : Class 9
the answer is 4!!!

Ans 8:

Class : Class 9
4

Ans 9:

Class : Class 8
Yes .... The answer is 4. ( 2, 3 ,5 and 7)

Ans 10:

Class : Class 8
The answer is 4, not 3

Ans 11:

Class : Class 4
isn't the answer "A"

Ans 12:

Class : Class 9
The answer should be (A) 4.There are four factors, i.e. 2,3,5,7. Even the solution says so. Please correct the error.

Ans 13:

Class : Class 10
ans is 4. (2,3,5,7)

Ans 14:

Class : Class 9

Ans 15:

Class : Class 6
the solution of the equation is 3*3*5*5*5*2*7 which has seven prime factors

Ans 16:

Class : Class 5
ans is 7

Ans 17:

Class : Class 8
The answer should be option (A) = 4. There are 4 prime factors, i.e. 2, 3, 5 and 7. The solution contradicts the question's answer.

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
10000

Ans 2:

Class : Class 4
The answer is D

Ans 3:

Class : Class 5
the answer is c

Ans 4:

Class : Class 2
100 tens = 1 thousand

Ans 5:

Class : Class 7
trick question

Ans 6:

Class : Class 6

Ans 7:

Class : Class 9
The answer is D .

Ans 8:

Class : Class 3

Ans 9:

Class : Class 8

Ans 10:

Class : Class 8
man the answer is 10 lackhs

Ans 11:

Class : Class 9

Ans 12:

Class : Class 8
The answer is D- 1 thousand

Ans 13:

Class : Class 4
solutions should be in detail and a little easy

Ans 14:

Class : Class 9
BIR you have written ten thousand instead of one thousand !!!

Ans 15:

Class : Class 5
dfd

Ans 16:

Class : Class 6
The answer is (A) because it has said the minor 5-digit no.

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