exam Maths Puzzle Numerical Ability

GIVE AN EXAMPLE OF A REAL-LIFE NUMBER SEQUENCE.DESCRIBE ITS PATTERN

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exam Other Question

The difference of two numbers is 7. The second is 7 less than 2 times the first. What are the two numbers? Determine if the ordered pair a solution of the inequality ?
(3,12); 5y-6x>3

Help me with this please.