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VAIBHAV from Apeejay school bbsr, Bbsr
Subject :IMO    Class : Class 5

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Dhritiman Sengupta from Euro School Whitefield, Bangalore
Subject :IMO    Class : Class 1

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Shreesh Shastri from Guru Har Rai Academy, Kanpur
Subject :IMO    Class : Class 8

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Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Subject :IMO    Class : Class 3

Ans 1:

Ishaan Krishna from GIG International school, Singapore
Class : Class 4
D

Ans 2:

Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Class : Class 4
D is the answer

Ans 3:

Kashika Goel from DPS Noida, Noida
Class : Class 4
D

Ans 4:

Bhargavi Vaibhav Zade from R. S. MUNDLE ENGLISH SCHOOL, NAGPUR
Class : Class 5
YES THE CORRECT ANSWER IS [B] ....

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Amlan choudhury from GD Birla center for education , Kolkata
Subject :IMO    Class : Class 5

Ans 1:

Arnav majumdar from vibgyor, BANAGALORE
Class : Class 5
good

Ans 2:

Asank Kumar from Delhi Public School, navi mumbai
Class : Class 7
CCCCCCCCCCCCCCCCCCCCCCc

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Amlan choudhury from GD Birla center for education , Kolkata
Subject :IMO    Class : Class 5

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Aarav Srivastav from DWPS , Noida Extension
Subject :IMO    Class : Class 7

Ans 1:

Dhruv from Springdales, Dubai
Class : Class 9
EVEN D IS EMBEDDED

Ans 2:

Srijan Anand from VIBGYOR HIGH, Bangalore
Class : Class 7
Can we consider the outer part? If yes, then A is also embedded.

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aviral goyal from DPS EOK , New Delhi
Subject :IMO    Class : Class 5

Ans 1:

Arnav from SIS, Noida
Class : Class 5
Answer WRONG OF THIS SOLUTION there are two 4 in solution but only one in answer i.e 20 12 8 6 6 5 5 4 2= 68 ( because they included one more 4 which i don't know why the answer is showing 72 ) please check your answers SOF trainer developers

Ans 2:

Arnav from SIS, Noida
Class : Class 5
i had put plus sign in 20, 12 etc

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from GIIS,
Subject :IMO    Class : Class 5

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Prasanna Hegde from Vibgyor High Horomavu, BENGALURU
Subject :IMO    Class : Class 3

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