SSC CHSL 11 Jan 2017 Shift 2 Paper

Imports in 2012 = Rs. 600 crores
Let Exports in 2012 = Rs.y crores
Ratio of imports and exports in 2012 = 1.4
⇒ $\frac{600}{\mathit{y}}=1.4$
⇒ $\mathit{y}=\frac{600}{1.4}=428.57$
Total exports In the years 2012 and 2013 together = Rs. 2400 crores
⇒ Exports in 2013 = Rs. (2400 - 428.57) crores = Rs. 1971.43 crores
Let imports in 2013 = Rs.x crores
Ratio of imports and exports in 2013 = $\frac{\mathit{x}}{1971.43}=0.7$
⇒ $\mathit{x}=1971.43\times 0.7$ $=1380.001\approx 1380$
∴ Imports in 2013 was Rs. 1380 crores