Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
68 : 19 :: 76 : 21 :: 164 : ?
Option 1: 45
Option 2: 39
Option 3: 43
Option 4: 41
Correct Answer: 43
Solution :
Given:
68 : 19 :: 76 : 21 :: 164 : ?
Divide the first number by 4 and add 2 to the resultant to obtain the second number.
Like, 68 : 19→68 ÷ 4 = 17; 17 + 2 = 19
And, 76 : 21→76 ÷ 4 = 19; 19 + 2 = 21
Similarly, follow the pattern for 164→164 ÷ 4 = 41; 41 + 2 = 43
So, 43 is related to 164. Hence, the third option is correct.
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