SOLUTION: The least whole number which when subracted from both the terms of the ratio 6:7 gives a ratio less than 16:21 is a)2 b)3 c)4 d)6

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Question 138302: The least whole number which when subracted from both the terms of the ratio 6:7 gives a ratio less than 16:21 is
a)2 b)3 c)4 d)6
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The least whole number which when subracted from both the terms of the ratio 6:7 gives a ratio less than 16:21 is
a)2 b)3 c)4 d)6
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(6-k)/(7-k) < 16/21
21(6-k)<16(7-k)
126-21k < 112-16k
14 < 5k
k> 14/5 = 2.8
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k must be 3
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Cheers,
Stan H.