number analogy Practice Questions Answers Test with Solutions & More Shortcuts

Directions: In each of the following questions consists of a pair of numbers that have a common relationship to each other, followed by four other pairs of numbers given as alternatives. Select the pairs in which the numbers are similarly related as in the given pair from the alternatives.

Question : 11

11 : 121

a) 5 : 115

b) 6 : 180

c) 25 : 625

d) 26 : 188

Answer: (c)

$$\text"Second number is the square of the first number."$$

$$\text"As, " \text"11"^2=\text"121"$$

$$\text"lly, "\text"25"^2=\text"625".$$

Question : 12

14 : 70

a) 75 : 375

b) 15 : 90

c) 80 : 480

d) 19 : 57

Answer: (a)

$$\text"First number is multipled by 5 to get second number."$$

$$\text"As, " \text"14 x 5"=\text"70"$$

$$\text"lly, "\text"75 x 5"=\text"375".$$

Directions: Each of the following questions, choose one number which is similar to the numbers in the given set.

Question : 13

Given set : 992, 733, 845, 632

a) 114

b) 326

c) 425

d) 947

Answer: (c)

In all the numbers, the middle digit is the sum of the digits of the product of other two digits.

Now, 9 × 2 = 18, 1+8 = 9 (middle digit in 992);

7 × 3 = 21, 2+1 = 3 (middle digit in 733);

8 × 5 = 40, 4+0 = 4 (middle digit in 845) and so on.

Question : 14

Given set : 4718, 5617, 6312, 8314

a) 2715

b) 3410

c) 5412

d) 6210

Answer: (c)

In all the numbers, the product of the first and last digits in a multiple of the sum of the middle two digits.

Thus, 4 × 8 = 32 is a multiple of (7 + 1),

i.e., 8, 5 × 7 = 35 is a multiple of (6 + 1),

i.e., 7 and so on

Question : 15

Given set : 363, 489, 579

a) 471

b) 842

c) 173

d) 272

Answer: (b)

Numbers Sum of digits New sum of digits
363 3+6+3 = 12 1+2 = 3
489 4+8+9 = 21 2+1 = 3
579 5+7+9 = 21 2+1 = 3
471 4+7+1 = 12 1+2 = 3
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