Question
If the third proportion of 25 and 20 is “0.5k”, then
find the value of (k − 8) : (k + 24).Solution
Third proportion of two numbers ‘a’ and ‘b’ is (b²/a).
So, 0.5k = (20²/25) = 16
Or, 'k' = 32
Required value = (32 - 8) : (32 + 24) = 24 : 56 = 3 : 7
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