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Tagged: Health, Medicine, Young's Rule

Find the age of the child through the young’s rule?

o.6 = y x A / y + 12

The average blood pressure of a person aged y years measure in millimetres of mercury (mm Hg), is given by P = 110 + ^{y}/_{2. }At what age is a person’s blood pressure 124 mm Hg?

$$124=110+\frac{y}{2}$$

$$14=\frac{y}{2}$$

28 = y

∴ 28 years old

Find the age of the child through the Young’s rule : $$0.6 = \frac{y\times A}{y + 12}$$

0.6y + 7.2 = Ay

7.2 = Ay – 0.6y

y(A – 0.6) = 7.2

$$y=\frac{7.2}{A-0.6}$$