Number Analogy Questions


Question 1:

8 : 81 : : 64 : ?

Answer:

625

Solution:

As,

(2)3 : (2+1)(3+1)

= (2)3 : (3)4

=8 : 81

Similarly,

(4)3 : (4+1)(3+1)

= (4)3 : (5)4

=64 : 625

Question 2:

9 : 8 : : 16 : ?

Answer:

27

Solution:

As,

(3)2 : (3-1)(2+1)

= (3)2 : (2)3

=9 : 8

Similarly,

(4)2 : (4-1)(2+1)

= (4)2 : (3)3

=16 : 27

Question 3:

85:40::78:?

Answer:

56

Solution:

As,

85=8*5=40

Similarly,

78=7*8=56

Question 4:

42:56::110:?

Answer:

132

Solution:

As,

6*7=42 : 7*8=56

(6,7,8)=(a,b,c) so, a*b=b*c i.e. 42:56

Similarly,

10*11 = 110 : 11*12 = 132

(10,11,12)=(a,b,c) so, a*b=b*c i.e. 11:132

Question 5:

48:122::168:?

Answer:

downpour

Solution:

As,

48+1=49=72=perfect square

122-1=121=112=perfect square

Here, 7+4=11

Similarly,

168+1=169=132=perfect square

So, 13+4=17

So, 172=289=perfect square

So, 289+1=290

To understand,

168+1=169=132=perfect square

290-1=289=172=perfect square

So, 13+4=17    

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