number analogy Practice Questions Answers Test with Solutions & More Shortcuts

Directions: In each of the following questions, there is a certain relationship between two given numbers on one side of (: :) and one number is given on another side of (: :) while another number is to be found the given alternatives, having the same relationship with this number as the number of the given pair bears. Choose the best and correct alternatives.

Question : 1 [S.S.C. 1999]

3 : 243 : : 5: ?

a) 1425

b) 4675

c) 5456

d) 3125

Answer: (d)

The relationship is x : x5.

As, $$\text"3" ^5 = \text"243." \text" Similarly", \text"5"^5 = \text"3125" $$

Question : 2 [C.P.O. 2004]

7584 : 5362 : : 4673 : ?

a) 2451

b) 2531

c) 2367

d) None of the these

Answer: (a)

The relationship is x : (x - 2222).

As, $$\text"7584"-\text"2222"=\text" 5362."$$

$$ \text" Similarly", \text"4673"-\text"2222" = \text"2451" $$

Question : 3 [S.S.C. 2002]

49 : 81 : : 100 : ?

a) 64

b) 144

c) 169

d) None of the these

Answer: (b)

$$\text"The relationship is"$$ x2 : (x + 2)2.

As, $$\text"7"^2:(\text"7"+\text"2")^2=\text"49" :\text"81".$$

$$\text" Similarly",\text"10"^2:(\text"10"+\text"2")^2=\text"100" :\text"144"$$

Question : 4 [S.S.C. 2002]

149 : 238 : : 159 : ?

a) 169

b) 248

c) 261

d) 268

Answer: (b)

$$\text"The relationship is"$$ x : (x + 89).

As, $$\text"149":\text"149"+\text"89"=\text"149" :\text"238".$$

$$\text" Similarly",\text"159":\text"159"+\text"89"=\text"159" :\text"248"$$

Question : 5 [S.S.C. (CGL) April 2014]

1/9 : 1/81 : : 1/13 : ?

a) $$1/127$$

b) $$1/169$$

c) $$1/125$$

d) $$1/120$$

Answer: (b)

$$\text"The relationship is"$$ x : x2.

As, $$(\text"1" / \text"9"\)^2 = (\text"1" / \text"81"\).\text" Similarly", (\text"1" / \text"13"\)^2 = (\text"1" / \text"169"\)$$

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