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Tricky Maths Puzzle Questions with Answers in English for Competitive Exams

9. What number should replace the question mark?
Ans: 92.2
Sol.
Deduct 2.6 at each stage
 
 
10. What number should replace the question mark?
Ans: 7
Sol.
The numbers round the centre increase by seven(in the others they increase by three and five respectively).