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The persons of O-blood group are 40%. Th...

The persons of O-blood group are 40%. The classification of persons based on blood groups is to be shown by a pie diagram. What should be the measure of angle for the persons of O-blood group? a)`114^@` b)`140^@` c)`104^@` d)`144^@`

A

`114^@`

B

`140^@`

C

`104^@`

D

`144^@`

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