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Vadthyavath srinu

· started a discussion

· 1 Months ago

Explain detailed please

Question:
DIRECTIONS: Find the related number from the given alternatives.


5 : 4 :: 21 : ?

Options:
A)

10

B) 12 
C) 14 
D) 16
Solution:

Ans: (b) Relationship is (2\( x \) - 3) : \(x \)

\(x \) = 2nd number

ex- 5 : 4 :: 21 : ?

(2 x 4 - 3) : 4

5 : 4


Knowledge Expert

· commented

· 1 Months ago

Dear student
The logic used here is
(2x - 3 ) : x
where x = 2nd number
(2* 4 - 3) = 4

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