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The cost of the red green and blue colou...

The cost of the red green and blue colours per kg is`₹20` `₹15` and `₹18` respectively. Rang mahal is a renowned building in which these three colours are being used in the ratio of 3:2:4.The average cost of all the three colours used per kg is:

A

18

B

20

C

17.66

D

can't be determined

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The correct Answer is:
A
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