Question : Directions: 35 is related to 48 following a certain logic. Following the same logic, 80 is related to 99. To which of the following is 143 related, following the same logic?
Option 1: 175
Option 2: 165
Option 3: 178
Option 4: 168
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Correct Answer: 168
Solution :
Given:
35 is related to 48 and 80 is related to 99.
Subtract one from the square of consecutive numbers, to get the related number –
Like, 35 is related to 48→(6)
2
– 1 = 36 – 1 = 35; (7)
2
– 1 = 49 – 1 = 48
And, 80 is related to 99→(9)
2
– 1 = 81 – 1 = 80; (10)
2
– 1 = 100 – 1 = 99
Similarly, follow the same pattern for 143 : ?→(12)
2
– 1 = 144 – 1 = 143; (13)
2
– 1 = 169 – 1 = 168
So, 168 is related to 143. Hence, the fourth option is correct.
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