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Question

If a/b = c/d = e/f = 3/4, What is the value of \(\frac{{a + c + e}}{{b + d + f}}\) ?

This question was previously asked in
SSC Selection Post 2019 Graduation Level Question Paper (16 Oct, 2019) (Shift 3)
The correct answer is

3/4

The correct answer is 3/4.

Dividendo: If \frac{a}{b} = \frac{c}{d} , then \frac{a-b}{b} = \frac{c-d}{d} . Componendo and Dividendo: If \frac{a}{b} = \frac{c}{d} , then \frac{a+b}{a-b} = \frac{c+d}{c-d} (provided a \neq b and c \neq d ). The property used in this question is an extension of Componendo and Dividendo applied to multiple equal ratios. These properties simplify calculations and help solve complex problems involving proportions more efficiently.

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Important Questions from Direct or Indirect Proportion

  1. If x is inversely proportional to y, and y = 30 when x = 28, find the value of x, when y = 20.
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