International Maths Olympiad Forum By SOF Olympiad Trainer - Page 318

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Subject :IMO    Class : Class 7

Ans 1: (Master Answer)

Class : Class 1

(B)

x = 180 - (100 + 25) [Sum of interior angles in triangle in 180°]
= 55°
y = 25° [Alternate angle]
m = x = 55° [Corresponding angles]
w = 180º - (55º + m) [Sum of interior angles in triangle in 180°]
= 180º - (55º + 55º) = 70º
w = z + 25º [Corresponding angles]
z = 70º - 25º  = 45°
x + y = 55º + 25º = 80°

w - y= 70º - 25º = 45°

 


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Subject :IMO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

(B): 50 tens = 500
And, 400 is less than 500.
Hence, option (B) is correct.


Ans 2:

Class : Class 2

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8

Ans 2:

Class : Class 9

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Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Class : Class 1

(B): The smallest 6-digit number that can be formed is 102369.


Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
how

Ans 4:

Class : Class 5
Shouldn't it be A. It didnt say that it has to be like u know

Ans 5:

Class : Class 7

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Subject :IMO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

(B):

 Ritesh’s father (Varun) and Rahul’s mother(Sarika) are brother and sister.
  So , Ritesh is cousin of Rahul . 


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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 8
WHY

Ans 2:

Class : Class 8

Ans 3: (Master Answer)

Class : Class 1

The correct answer is option A. 


Ans 4:

Class : Class 7
I think the answer is C

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Subject :IMO    Class : Class 1

Ans 1:

Class : Class 4

Ans 2: (Master Answer)

Class : Class 1

(A): Cost of a Paperclip = ₹ 25
Cost of a Bag = ₹ 155
Cost of a Notebook = ₹ 86
∴ Total Required cost
= ₹ 25 + ₹ 155 + ₹ 86
= ₹ 266 i.e., CCLXVI


Ans 3:

Class : Class 7

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Subject :IMO    Class : Class 6

Ans 1: (Master Answer)

Class : Class 1

(A): 

 


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Subject :IMO    Class : Class 6

Ans 1:

Class : Class 9

Ans 2:

Class : Class 6

Ans 3:

Class : Class 9

Ans 4:

Class : Class 4
sghdhgfdy

Ans 5:

Class : Class 7
D

Ans 6:

Class : Class 6

Ans 7:

Class : Class 8
D

Ans 8: (Master Answer)

Class : Class 1

The correct answer is option D. 


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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 8

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