Question : Directions: Select the option related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.
2 : 8 :: 10 : ? :: 5 : 50
Option 1: 1000
Option 2: 40
Option 3: 100
Option 4: 200
Correct Answer: 200
Solution :
Given:
2 : 8 :: 10 : ? :: 5 : 50
Square the number given in the first term, and then multiply the resultant by 2, to obtain the required missing term –
Like, 2 : 8→2
2
× 2 = 4 × 2 = 8
And, 5 : 50→5
2
× 2 = 25 × 2 = 50
Similarly, follow the same pattern for 10 : ?→
10
2
× 2 = 100 × 2 = 200
So, 200 is the required missing number. Hence, the fourth option is correct.
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