The sum of three numbers is 79. If the ratio of the first number to the second number is 4 : 7 and that of the second number to the third number is 4 : 5, then the second number is:
Let the three numbers are a, b, c
Given, Sum of the numbers = 79
Ratio of first number to second number = 4 : 7
$$=$$>Â a : b = 4 : 7
$$=$$> a : b = 16 : 28
Ratio of second number to third number = 4 : 5
$$=$$>Â b : c = 4 : 5
$$=$$> b : c = 28 : 35
$$=$$> a : b : c = 16 : 28 : 35
$$\therefore\ $$Second number =Â $$\frac{28}{79}\times79$$ = 28
Hence, the correct answer is Option B
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