The ratio of percentage of increase in price of gold from 2011 to 2012 and 2012 to 2013 is

Price of gold in 2011 ($$^\circ$$) = 75

Price of gold in 2012 ($$^\circ$$) = 105

=> Percentage increase in price from 2011 to 2012 = $$\frac{105-75}{75} \times 100$$

= $$\frac{30}{3} \times 4=40\%$$

Similarly, percentage increase in price from 2012 to 2013 = $$\frac{135-105}{105} \times 100$$

= $$\frac{200}{7}\%$$

$$\therefore$$ Required ratio = $$40$$ : $$\frac{200}{7}$$

= $$40 \times \frac{7}{200} = \frac{7}{5}$$

=> Ans - (B)