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 B9 Given, 'Fruit is sweet' ≡ '479'...(i) 'Very sweet voice' ≡ '248'...(ii) and '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'.