exam Maths Puzzle Numerical Ability

Determine if the ordered pair a solution of the inequality ?
(3,12); 5y-6x>3

Help me with this please.

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exam Other Question

Working as a team ,8 mathletes can solve 20 problems in 10 minutes. At this rate, how many mathletes are needed in order to solve 30 problems in 5 minutes. How do you work substitution equations?

ex.

t=0.2s+10
4s+5t=35