Question

7. If 2 1/2: K::3 12:4; then find the value of K.​

Answer 1

Step-by-step explanation:

$\frac{ \frac{5}{2} }{k} = \frac{ \frac{7}{2} }{4} \\ \\ = > \frac{5}{2} \times \frac{1}{k} = \frac{7}{2} \times \frac{1}{4} \\ \\ = > \frac{5}{2k} = \frac{7}{8} \\ \\ = > \frac{5}{2k} \times 8 = 7 \\ \\ = > 5 \times 8 = 7 \times 2k = > 40 = 14k = > k = \frac{40}{14} = \frac{20}{7}$