Question : Directions: Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term.
24 : 2 :: 81 : 3 :: 375 : ?
Option 1: 15
Option 2: 5
Option 3: 9
Option 4: 7
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Correct Answer: 5
Solution :
Given:
24 : 2 :: 81 : 3 :: 375 : ?
Like, 24 : 2→2 + 4 = 6 (Sum of digits of the first number); 24 ÷ 6 = 4; √4 = 2
81 : 3→8 + 1 = 9 (Sum of digits of the first number); 81 ÷ 9 = 9; √9 = 3
Similarly, for 375 : ?→3 + 7 + 5 = 15 (Sum of digits of the first number); 375 ÷ 15 = 25; √25 = 5
So, 5 is related to 375. Hence, the second option is correct.
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