exam Maths Puzzle Numerical Ability

4 + /r+2/ = 7

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exam Other Question

Can someone solve the equations for these. (3,1),(1,3) and (0,3),(5,0)to show me the answer? Thanks! Find all sets of three consecutive positive odd integers whose sum is less than 20 but greater than 10.

* Could you please provide the original equation used in this problem. Thank you.