book Maths Puzzle Numerical Ability

math099 find two consecutive odd integers such that twice the square of the first plus the square of the second totals ninety-nine.

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book Other Question

Cameron has a clock that loses nine minutes every hour. The clock is now 12:00 noon on Tuesday. When will the clock have the right time again. . Solve the following system by substitution.
8x - 4y = 16
y = 2x - 4