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In what ratio must a person mix three ki...

In what ratio must a person mix three kinds of wheat costing him 1.20, 1.44 and 1.74 per kg, so that the mixture may be worth 1.41 per kg?

A

11 : 77 : 7

B

7 : 11 : 77

C

11 : 7 : 77

D

None of these

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The correct Answer is:
A
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