International Maths Olympiad Forum By SOF Olympiad Trainer - Page 354

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 5
yes answer is 4 from Mokshada sikachi

Ans 2:

Class : Class 3
But its 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
correct answer is 4

Ans 6:

Class : Class 7
CORRECT Answer is 4

Ans 7:

Class : Class 5
answer is 4

Ans 8:

Class : Class 5

Ans 9:

Class : Class 7
4 is correct answer

Ans 10:

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

Ans 11:

Class : Class 6
Ans 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 9

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 7

Ans 5:

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

Ans 6:

Class : Class 8
the answer is 7.

Ans 7:

Class : Class 9
4

Ans 8:

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

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

Ans 11:

Class : Class 8
ans is 7

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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 D- 1 thousand

Ans 2:

Class : Class 3

Ans 3:

Class : Class 5
man the answer is 10 lackhs

Ans 4:

Class : Class 5
dfd

Ans 5:

Class : Class 4
10000

Ans 6:

Class : Class 6

Ans 7:

Class : Class 6

Ans 8:

Class : Class 4
The answer is D

Ans 9:

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

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
the answer is c

Ans 12:

Class : Class 9
The answer is D .

Ans 13:

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

Ans 14:

Class : Class 2
100 tens = 1 thousand

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 9
its more than easy D

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Subject :IMO    Class : Class 3

Ans 1:

Class : Class 3
the answer should 107

Ans 2:

Class : Class 7
the answer is 108

Ans 3:

Class : Class 7
IT IS OUT OF SYLLABUS.

Ans 4:

Class : Class 4
out of syallabus

Ans 5:

Class : Class 3
correct answer should be 33

Ans 6:

Class : Class 3

Ans 7:

Class : Class 7
It is NOT out of syllabus . The sulution is that one moon is 18.So,18x18=324.To get the star devide 18 by 3=6.18-6=12

Ans 8:

Class : Class 6
it is a little tricky but i solved it.

Ans 9:

Class : Class 4

Ans 10:

Class : Class 5
options given seems to be wrong

Ans 11:

Class : Class 3
I don't know the answer because IT IS OUT OF SYLLABUS

Ans 12:

Class : Class 4
Out of Syllabus

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