The sum of three numbers is 188. If the ratio of the first to the second is 2:5 and that of second to the third is 7:9 then the second number is?
Let the three numbers be A, B and C. Now, A:B = 2:5 & B:C = 7:9 A: B: C = 14:35:45 A+B+C = 188 14k + 35k + 45k = 188 94k = 188 k = 2 Second number = B = 35 x 2 = 70
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