In a certain code language, '479' means 'fruit is sweet'; '248' means 'very sweet voice' and '637' means 'eat fruit daily'. Which digit stands for 'is' in that code?
A
7
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B
9
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C
4
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D
Can't determined.
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Solution
The correct option is B 9 Given: 'Fruit is sweet' ≡′479′.....(i) 'Very sweet voice' ≡′248′.....(ii) 'Eat fruit daily' ≡′637......(iii) From equations (i) and (ii) 'sweet' is coded as '4'. From equations (i) and (iii) 'fruit' is coded as '7'. From equation (i), 'is' is coded as '9'.