RRB Group D 2-Nov-2014 Shift 1 Solved Paper

Question : 80 of 100

Marks: +1, -0

If 18, x and 50 are in continued proportion, then the value of x is

Solution:

Since, 18, x and 50 are in continued proportion,

\;{18}/{x}=\;{x}/{50} ⇒ x^{2}=18 × 50=900

⇒ x=√{900}=30

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