International Maths Olympiad Forum By SOF Olympiad Trainer - Page 290

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Subject :IMO    Class : Class 8

Ans 1:

Class : Class 8
Options B and C are the same. And both are correct, since if a number is divisible by 9 and 10, it will also be divisible by 90. SOF, kindly rectify this error.

Ans 2:

Class : Class 9
Why r both options same Change it

Ans 3:

Class : Class 8
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Ans 4:

Class : Class 9
Options b) and c) are the same.Why?

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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

The correct answer is option A. 


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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

(D): (0, – 3) lies on negative y-axis.


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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

(A): Weight of moon = (7.346 ×1022) kg
Weight of Earth = (5.9724 × 1024) kg
Total weight = 7.346 × 1022 + 5.9724 × 1024
= 0.07346 × 1024 + 5.9724 × 1024
= (0.07346 + 5.9724) × 1024
= 6.04586 × 1024 kg


Ans 2:

Class : Class 8
it helped me

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Subject :IMO    Class : Class 7

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Subject :IMO    Class : Class 7

Ans 1:

Class : Class 10
STEP-3 IS WRONG HERE 3 IS ADDED TO 72 THEN UPON 7 IS DONE WHICH IS WRONG WE HAVE TO TAKE LCM CORRECTLY BY MAKING DENOMINATORS EQUAL.

Ans 2:

Class : Class 7
STEP 3 AS THEY ADDED 3 TO 72/7 WITHOUT MAKING THE DENOMINATORS EQUAL WHICH IS NECESSARY IN FRACTION ADDITIONS

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Subject :IMO    Class : Class 4

Ans 1:

Class : Class 4
Answer is B

Ans 2:

Class : Class 5
b

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Subject :IMO    Class : Class 6

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Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1

The correct answer is option A. 


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Subject :IMO    Class : Class 8

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