International Maths Olympiad Forum By SOF Olympiad Trainer - Page 486

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8
mega knight bait I agree

Ans 2:

Class : Class 7

Ans 3:

Class : Class 8
i agree

Ans 4:

Class : Class 8

Ans 5:

Class : Class 9

Ans 6:

Class : Class 9
In your solution- sign is missing in the denominator. It should be -3/10 3/5. None of the options match.

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Subject :IMO    Class : Class 8

Study the statements and choose the correct option.
Statement 1 : Rajan had money which was enough to buy 30 books at the rate of Rs 20 per book. If the price of each book is increased to Rs 25, then Rajan can buy 24 books with the same amount of money.
Statement 2 : Since in the above case, the value of one variable increases and the value of the other decreases, the problem is based on the application of inverse variation.

AStatement 1 is true and statement 2 is false.
BStatement 1 is false and statement 2 is true.
CBoth statement 1 and 2 are false.
DBoth statement 1 and 2 are true.


statement 2 is also correct as price increases then no of book decreases for same amount implying inverse variation, suggested statement 2 as false is incorrect.

Ans 1:

Class : Class 8
INVERSE PROPORTION IS WHEN PRODUCT OF BOTH REMAINS THE SAMESHOULD BE D)

Ans 2:

Class : Class 9

Ans 3:

Class : Class 10

Ans 4:

Class : Class 9
yes in ncert also a example with table mentions the answer to be inversely proportion if the amount ifs fixed

Ans 5:

Class : Class 8
answer should be d

Ans 6:

Class : Class 9
d

Ans 7:

Class : Class 9
D

Ans 8:

Class : Class 8

Ans 9:

Class : Class 8

Ans 10:

Class : Class 9
Answer is D

Ans 11:

Class : Class 9

Ans 12:

Class : Class 9
d

Ans 13:

Class : Class 10
Answer is D only A is wrong.

Ans 14:

Class : Class 9
Answer should be (D).

Ans 15:

Class : Class 7
Answer should be (D).

Ans 16:

Class : Class 8

Ans 17:

Class : Class 10
answer is D and only D

Ans 18:

Class : Class 10
Answer should be (d)

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 6
g

Ans 2:

Class : Class 9

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8
This question is driving me crazy!!!So much of calculation for my lazy bones!!!!!!!!

Ans 5:

Class : Class 7
Ans will be 66651 on given credentials. But in solution calculation is wrong. Plz correct.

Ans 6:

Class : Class 9

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 9
D

Ans 2:

Class : Class 5
D

Ans 3:

Class : Class 8
D

Ans 4:

Class : Class 5
D.2666

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 7
yes, the answer should be a

Ans 2:

Class : Class 6
A

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Subject :IMO    Class : Class 3

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 8
B

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
Ans is D.

Ans 2:

Class : Class 9

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 5
Who

Ans 2:

Class : Class 8
The answer is D because 7 plus 9 = 16 - 4 = 12 ... So, in this way 19 plus 18 = 37 -15 =22

Ans 3:

Class : Class 7
Fig 1 :(2-9) 4=7Fig 2 : (23-15) 8=16Fig 3: (19-15) 18=22 option D

Ans 4:

Class : Class 5
i also know ok

Ans 5:

Class : Class 6

Ans 6:

Class : Class 6
22 IS THE ANSWER

Ans 7:

Class : Class 4

Ans 8:

Class : Class 7

Ans 9:

Class : Class 4

Ans 10:

Class : Class 4
22

Ans 11:

Class : Class 8

Ans 12:

Class : Class 8
I calculated I got 22 but in different way 4 and 7 have difference of 3 and so do 9 and 12 next figure 8 and 16 have difference of 8 and so do 15 and 23 and 19 and 15 have difference of 4 and so should 18 and ? (missing number) should have difference of 4 so 18 4 = 22 so I got 22 answer

Ans 13:

Class : Class 4
Option A

Ans 14:

Class : Class 3
22

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9
It should be PO not PQ

Ans 2:

Class : Class 8
It should be written PO the second time. Then this answer will be correct. Because PQ is bisected at O so PO will be 4.1 This question is wrong.

Ans 3:

Class : Class 7
The answer is 4.1 as 8.2 divided by 2is 2.1

Ans 4:

Class : Class 8
Why is it written PQ at the second time? It should be PO

Ans 5:

Class : Class 9
confusing and incorrect question but answer pretty obvious

Ans 6:

Class : Class 6
It should be written PO the second time, not PQ.

Ans 7:

Class : Class 7
It should be written PO the 2nd time

Ans 8:

Class : Class 6
it should not be PQ in the second instance . it should be PO.

Ans 9:

Class : Class 8
Answer c

Ans 10:

Class : Class 8
Answer c

Ans 11:

Class : Class 7
wrong question

Ans 12:

Class : Class 6

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