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Subject :IMO    Class : Class 6

What is the number in the START box?



A215
B121.5
C315
D452.5


you should make the division sign clear

Ans 1:

Class : Class 6
b

Ans 2:

Class : Class 7
the answer is (c)

Ans 3:

Class : Class 6
the question must be start arrow divided by 21 and multiplied by 4

Ans 4:

Class : Class 6
which is 60

Ans 5:

Class : Class 7

Ans 6:

Class : Class 5
I think it is a WRONG QUESTION

Ans 7:

Class : Class 6
question is wrong.i asked to all my schools mathematics teachers

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