International Maths Olympiad Forum By SOF Olympiad Trainer - Page 456

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 9

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 2
1000ml=250ml 250ml 250ml 250ml.

Ans 2:

Class : Class 5
what the question is wrong??!actually makes sense

Ans 3:

Class : Class 5
this question is not formed correctly, I mean that it has no question. Silly soffffff

Ans 4:

Class : Class 4
question is wrong instead of 3,200 ml it should be given 5,200ml

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8

Ans 2:

Class : Class 3

Ans 3:

Class : Class 3

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
3 ∠A = 4 ∠B = 6 ∠CL.C.M. of 3, 4 and 6 = 12We know, ∠A ∠B ∠C =180°12 ∠A 12 ∠B 12 ∠C = 12 × 180°12 ∠A 3 (4 ∠B) 2 (6 ∠C) = 12 × 180°12 ∠A 3 (3 ∠A) 2 (3 ∠A) = 12 × 180°12 ∠A 9 ∠A 6 ∠A = 12 × 180°27 ∠A = 12 × 180°∠A = 12 × 180° / 27 = 80°∠B = 3⁄4 ∠A = 3⁄4 of 80° = 60°∠C = 3⁄6 ∠A = 1⁄2 of 80° = 40°Therefore, ∠A ∠B - 3 ∠C = 80° 60° - 3 × 40°= 140° - 120°= 20°Answer-(C) 20°

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Subject :IMO    Class : Class 8

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 7
B

Ans 2:

Class : Class 4
B

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Subject :IMO    Class : Class 5

Ans 1:

Class : Class 6
The correct answer is 3

Ans 2:

Class : Class 7
D)1

Ans 3:

Class : Class 6
D

Ans 4:

Class : Class 6
D

Ans 5:

Class : Class 6
D

Ans 6:

Class : Class 6
D

Ans 7:

Class : Class 6
D

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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 6
Answer should be B.

Ans 2:

Class : Class 7
this answer should be c

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