Ajay is twice taller than his pet dog jimmy who is 80 cms. Geetha, Aja's sister is 70 cms taller than the dog. What is Ajay's and Geetha's height?

Question

$\begin{array}{11} (a)\; \text{A : 160 cm, G : 150 cm} \\ (b)\; \text{A : 150 cm, G : 160 cm} \\ (c)\; \text{A : 170 cm, G : 140 cm} \\ (d)\; \text{A : 165 cm, G : 150 cm } \end{array}$