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Question

If 2x3y=10 and xy=16; find the value of 8x327y3

A
3880
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B
3870
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C
6380
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D
8330
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Solution

The correct option is A 3880
(2x3y)3=(2x)3(3y)33(2x×3y)(2x3y)

(10)3=8x327y33(6xy)(10)

1000=8x327y33(96)(10)

1000=8x327y32880

8x327y3=2880+1000=3880

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