International Maths Olympiad Forum By SOF Olympiad Trainer - Page 436

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 8

Ans 3:

Class : Class 9
OPTION D IS CORRECT

Ans 4:

Class : Class 10
D

Ans 5:

Class : Class 9
OPTION D IS CORRECT

Ans 6:

Class : Class 8
option d .........

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 9
ANSWER SHOULD BE D NOT C

Ans 2:

Class : Class 9
D

Ans 3:

Class : Class 8
answer should be b in option a brackets are not given so it can be 12 x 26 x 10 = 7120 which is not the ans. so it will be not D

Ans 4:

Class : Class 4

Ans 5:

Class : Class 6
Yes

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
Answer is D

Ans 8:

Class : Class 3
Answer is C, good question

Ans 9:

Class : Class 4

Ans 10:

Class : Class 8
the answer should be D

Ans 11:

Class : Class 8

Ans 12:

Class : Class 8
nice goggly ans is c

Ans 13:

Class : Class 8

Ans 14:

Class : Class 7
The answer is B, not C because there are 16 crates, not 10

Ans 15:

Class : Class 4
answer should be D

Ans 16:

Class : Class 6
it is written NOT be used to find the number of fruits that is why the ans is C

Ans 17:

Class : Class 4
Answer should be c because they have written which expression could not be used to find the answer.

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
c

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5
(A)

Ans 2:

Class : Class 4
A A A A A A A A A A A A A A A A A A A A A A A A A A A

Ans 3:

Class : Class 5
(A) will be the answer.

Ans 4:

Class : Class 4

Post Your Answer

Subject :IMO    Class : Class 3

Ans 1:

Class : Class 5
2

Ans 2:

Class : Class 5
C

Ans 3:

Class : Class 3
C

Ans 4:

Class : Class 4
C is the awnser

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Subject :IMO    Class : Class 7

Tiara wants to know the width of the given river. While doing so, she stands on the edge of the river and look straight across to a point on the other edge without changing the inclination of the neck and head. She turns side ways until the vision is in line with a point on the side of the stream.

From the above description, find the value of QR.

A 25 units
B 12 units
C 15 units
D Can't be determined


NOT SATISFIED WITH THE SOLUTIONPLEASE EXPLAIN IN MORE DETAILI CANNOT UNDERSTAND ITTHANK YOU

Ans 1:

Class : Class 4

Ans 2:

Class : Class 7

Ans 3:

Class : Class 6
not correct so many questions waste

Ans 4:

Class : Class 8

Ans 5:

Class : Class 8
question is quite un-understandable

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Subject :IMO    Class : Class 6

State 'T' for true and 'F' for false and select the correct option.
(i) A prime number cannot have 0, 2, 4, 5, 6 and 8 at its ones place except 2.
(ii) Two numbers are called co-primes, if their L.C.M. is 1.
(iii) If X is a factor of Y and Y is a factor of Z, then X is also a factor of Z.
(iv) 4 is the smallest composite number.

A
B
C
D


I think correct answer is B. Because all the numbers having 2 at ones are not prime number

Ans 1:

Class : Class 10
Its not possible to have a number divisible by 2 in case of the digit at ones place being 5. So, (i) is false.(ii)F(iii)T(iv)TSo, B should be the answer. But the answer says C. Have no ideas why.

Ans 2:

Class : Class 6
ans is b 5 is already a prime number

Ans 3:

Class : Class 6
but 5 is primeso 1 is false

Ans 4:

Class : Class 4
5 is prime so ( i ) is false but they have given that (i)is true why do they confuse us so much

Ans 5:

Class : Class 7
your answer is wrong

Ans 6:

Class : Class 10

Ans 7:

Class : Class 7
To be more specific, the statement should have been: -A prime number cannot have 0,2,4,5,6 and 8 at its ones place except for 2 and 5.

Ans 8:

Class : Class 3
Ans is wrong. Opn B is correct.

Ans 9:

Class : Class 7
B is correct as 5 is a prime number in units place. Pls correct this Admin.

Ans 10:

Class : Class 6

Ans 11:

Class : Class 7
So (i) is false.

Ans 12:

Class : Class 6
5 will be in units place so it has to be option B

Ans 13:

Class : Class 7
But 5 is prime

Ans 14:

Class : Class 6
5 itself is a prime number, so option i) cannot be true.The correct answer should be B.

Ans 15:

Class : Class 6
ans. is wrong ,ans. is B

Ans 16:

Class : Class 6
but 5 is prime so ( i ) is false but they have given that (i)is true

Ans 17:

Class : Class 9
5 is a prime number which makes the correct option as B

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 7
The answer is B 13

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
D

Ans 2:

Class : Class 4
d

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
The question is wrong because the total is 225 students and to find number of students who like science we will subtract the total of maths,english ,hindi and sanskrit with 225 and add the answer to students who like english .So the answer came as 100

Ans 2:

Class : Class 4
A is the correct answer as without science there will be 190 students

Ans 3:

Class : Class 7
Yes it should be A as without science the number of students would be 190. Here the total number of students is 225

Ans 4:

Class : Class 4

Ans 5:

Class : Class 4
Answer should be A. If Science is not taken by any student, then which subject is taken by remaining 35 students?

Ans 6:

Class : Class 4
Yes the correct answer is A not B.

Ans 7:

Class : Class 3
Total students liking the subjects are 225. Maths-60, English-70, Hindi-20, Sanskrit-40. Remaining 35 students must be liking science. Hence answer must be A.

Ans 8:

Class : Class 8
The answer should be A. There is no value had given for science. Without that the total is 190. If we calculate the marks scored science out of 225, then the mark in science has to be 35. Hence the total has to 105, which is answer A

Ans 9:

Class : Class 4
Yes, yes! The answer should be A or the question is wrong...

Ans 10:

Class : Class 2
Ans:AB is wrong

Ans 11:

Class : Class 4
Answer given is wrong, the correct answer is A.

Ans 12:

Class : Class 3
total students are 225. but total of all subjects(leaving science) is 190. so the science student are 35. so number of student who are like science and english are 105.so answer a is correct.

Ans 13:

Class : Class 6

Ans 14:

Class : Class 5
The answer should be A not B. Must be some mistake.

Ans 15:

Class : Class 4

Ans 16:

Class : Class 6
Ans is a not b

Ans 17:

Class : Class 4
The correct answer is A not B

Ans 18:

Class : Class 5
a

Ans 19:

Class : Class 7
No! The answer is A. 60 70 20 40 = 190 which is NOT 225.Science = 35, English = 70 so answer is 105(A).

Ans 20:

Class : Class 5
Answer should be A not B.

Ans 21:

Class : Class 5
answer should be b not a

Ans 22:

Class : Class 5
There is no figure given for science student thus the answer is B.

Ans 23:

Class : Class 4
The question is wrong. Someone please report error.

Ans 24:

Class : Class 7
Answer should be A

Ans 25:

Class : Class 1
ANSWER SHOULD BE A OTHERWISE WRONG QUESTION NOT CONFUSE CHILD

Ans 26:

Class : Class 4
ANSWER IS A. Total number of students is 225. So science has to be 35. Its a glitch question!

Ans 27:

Class : Class 4
its not a direct question....

Ans 28:

Class : Class 4
Answer should be B not A

Ans 29:

Class : Class 9
answer should be B not A

Ans 30:

Class : Class 8

Ans 31:

Class : Class 4
Answer should be A

Ans 32:

Class : Class 4

Ans 33:

Class : Class 4
ans is A

Ans 34:

Class : Class 8
the correct answer is B

Ans 35:

Class : Class 4
A

Ans 36:

Class : Class 5
Ans should be A

Ans 37:

Class : Class 5
The correct answer is A, not C. The answer is wrong

Ans 38:

Class : Class 6

Ans 39:

Class : Class 8

Ans 40:

Class : Class 7