International Maths Olympiad Forum By SOF Olympiad Trainer - Page 447

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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 7
14

Ans 2:

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

Ans 3:

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

Ans 4:

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 5:

Class : Class 5

Ans 6:

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

Ans 7:

Class : Class 5
14 is the answer

Ans 8:

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

Ans 9:

Class : Class 3
hey raghav

Ans 10:

Class : Class 9
14

Ans 11:

Class : Class 3
15

Ans 12:

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 13:

Class : Class 3
its 15!

Ans 14:

Class : Class 7
14

Ans 15:

Class : Class 7
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 4
should be 14

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 5
correct answer is a

Ans 2:

Class : Class 3
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 3:

Class : Class 3
c

Ans 4:

Class : Class 6
a

Ans 5:

Class : Class 3

Ans 6:

Class : Class 3
C

Ans 7:

Class : Class 7
The answer is a because it is 60 and not c. C is 59.

Ans 8:

Class : Class 3
c

Ans 9:

Class : Class 3

Ans 10:

Class : Class 7
A

Ans 11:

Class : Class 4

Ans 12:

Class : Class 7
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 13:

Class : Class 3

Ans 14:

Class : Class 9
A

Ans 15:

Class : Class 3
C is the correct answer

Ans 16:

Class : Class 4
C

Ans 17:

Class : Class 5
c

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Subject :IMO    Class : Class 3

Ans 1:

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

Ans 2:

Class : Class 6
correct answer is 4

Ans 3:

Class : Class 3
answer is 4

Ans 4:

Class : Class 3
correct answer is 4

Ans 5:

Class : Class 3

Ans 6:

Class : Class 3
But its answer is 4

Ans 7:

Class : Class 7

Ans 8:

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

Ans 9:

Class : Class 9

Ans 10:

Class : Class 9
The correct answer is 4

Ans 11:

Class : Class 7
Ans is 4

Ans 12:

Class : Class 3
Geet modi is a genius

Ans 13:

Class : Class 8
CORRECT Answer is 4

Ans 14:

Class : Class 7
4 is correct answer

Ans 15:

Class : Class 7
answer is 4

Ans 16:

Class : Class 8
yes answer is 4 from Mokshada sikachi

Ans 17:

Class : Class 4
answer is 4

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Subject :IMO    Class : Class 4

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Subject :IMO    Class : Class 5

Ans 1:

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 2:

Class : Class 6
Option B)

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Subject :IMO    Class : Class 8

Ans 1:

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

Ans 2:

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

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

Ans 5:

Class : Class 8
the answer is 7.

Ans 6:

Class : Class 7

Ans 7:

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

Ans 8:

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

Ans 9:

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 10:

Class : Class 9
4

Ans 11:

Class : Class 8
ans is 7

Ans 12:

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.

Ans 13:

Class : Class 9

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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 5
the answer is c

Ans 2:

Class : Class 5

Ans 3:

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

Ans 4:

Class : Class 2
100 tens = 1 thousand

Ans 5:

Class : Class 3

Ans 6:

Class : Class 4
The answer is (A) because it has said the minor 5-digit no.

Ans 7:

Class : Class 5
dfd

Ans 8:

Class : Class 4
The answer is D

Ans 9:

Class : Class 4
10000

Ans 10:

Class : Class 7

Ans 11:

Class : Class 5
The answer is D- 1 thousand

Ans 12:

Class : Class 8
The answer is D .

Ans 13:

Class : Class 6
man the answer is 10 lackhs

Ans 14:

Class : Class 6

Ans 15:

Class : Class 8
BIR you have written ten thousand instead of one thousand !!!

Ans 16:

Class : Class 5
trick question

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