The investment ratio of P, Q and R if their profit ratio is 3 : 5 : 7 respectively and their investment time period is 4 : 5 : 6 respectively is :

9 : 12 : 14

The correct answer is Option (1) → 9 : 12 : 14

The investment ratio is,

$\text{Investment} = \frac{\text{Profit}}{\text{Time Period}}$

∴ Investment Ratio = $\frac{3}{4}:\frac{5}{5}:\frac{7}{6}$

$=45:60:70=9 : 12 : 14$