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    3 hour
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    10/3 hour
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    1/3 hour
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    3/10 hour
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Answer : 1. "3 hour"

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    1 hour
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    2 hour
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    1 hour 30 minutes
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    2 hour 30minutes
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Answer : 2. "2 hour"

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Answer : 4. "3 hours"

Q:

If m:n=3:2, then (4m+5n):(4m-5n) equal to-

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    4:9
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    9:4
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    11:1
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    9:1
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Answer : 3. "11:1"

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    81
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    72
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    45
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    56
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Answer : 1. "81"

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