number analogy Detailed Explanation And More Example

Answer: (a)

The first number is multiplied by the next prime number to obtain the second number.

Prime Numbers are 1, 3, 5, 7, 11, 13 .......

5 : 5 x 7 = 5 : 35

llly, 7 : 7 x 11 = 7 : 77.

Answer: (b)

$$\text"The relationship is"$$ x : (3x + 3)

As, $$\text"7":\text"(3 x 7 + 3)"=\text"7" :\text"24".$$

$$\text" Similarly",\text"23":\text"(3 x 23 + 3)"=\text"23" :\text"72"$$

Answer: (d)

$$\text"The relationship is " \text"x"^3 : \text"x"^2$$

$$\text"As, " \text"3"^3:\text"3"^2=\text"27" :\text"9".$$

$$\text" Similarly",\text"9"^3:\text"9"^2=\text"729" :\text"81".$$

Answer: (c)

As, Sum of digits of 583 = 5 + 8 + 3 = 16

and Sum of digits of 488 = 4 + 8 + 8

Similarly, Sum of digits of 293 = 2 + 9 + 3 = 14

and Sum of digits of "378" = 3 + 7 + 8 = 18

Here, difference of both sum of digits are (20 - 16) = (18 - 14) = 4.

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"\)$$

Answer: (b)

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

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

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