SSC GD Constable 6 Feb 2025 Shift 1 Paper

Section: Elementary Mathematics

Question : 58 of 80

Marks: +1, -0

What is the third proportional to 28 and 112?

Solution:

a, b

, and c are in proportion, then:

\;{a}/{b}=\;{b}/{c}

Third proportional

(c)=\;{b^2}/{a}

Calculation:
Third proportional

=\;{ b ^2}/{ a }

⇒ c =\;{112^2}/{28}

⇒ c=\;{12544}/{28}

⇒ c=448

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