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Question

if 2a>4c and 3b > 9a and a, b, c all positive, then :

A
c < a < b
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B
b < c < a
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C
c < b < a
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D
a < b < c
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Solution

The correct option is A c < a < b
2a>4c
2a>(22)c
2a>22c
base are same so
a>2c
3b>9a
3b>(32)a
b>2a
Hence b>a>c

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