Question
Find the missing number in the sequence 865 : 532 :: 976: ?
Answer
Correct Answer is 643
Explanation
The question is testing more of general intelligence rather than mathematical process. If we carefully observe relationship between 865 and 976. Increasing every digit in 865 by 1 gives 976. Applying same on 532 gives 643.
So, the correct answer is 865 532 976 643
Alternate Explanation
Observing relation between 865 and 532 tells us that on subtracting 3 from each digit of 865 gives 532. Applying same on 976 gives us 643 as answer.
So, the correct answer is 865 532 976 643
Conclusion
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