Data Interpretation Discussion

**Common Information**

The bar graph given below shows the foreign exchange reserves of a country (in million US $$$) from 1991-1992 to 1998–1999.

Q. |
For which year, the percent increase of foreign exchange reserves over the previous year, is the highest? |

✔ A. |
1992-93 |

✖ B. |
1993-94 |

✖ C. |
1994-95 |

✖ D. |
1996-97 |

**Solution:**

Option(**A**) is correct

There is an increase in foreign exchange reserves during the years 1992 - 1993, 1994 - 1995, 1996 - 1997, 1997 - 1998 as compared to previous year (as shown by bar-graph).

The percentage increase in reserves during these years compared to previous year are:

\begin{align*}

\text{For 1992 - 1993,}\\

&= \left[\dfrac{3720 - 2640}{ 2640} × 100\right]\%\\

&= 40.91\%. \\

\text{For 1994 - 1995,}\\

&= \left[\dfrac{3360 - 2520}{ 2520} × 100\right]\% \\

&= 33.33\%. \\

\text{For 1996 - 1997,} \\

&= \left[\dfrac{4320 - 3120}{ 3120} × 100\right]\% \\

&= 38.46\%.\\

\text{For 1997 - 1998,}\\

& = \left[\dfrac{5040 - 4320}{ 4320} × 100\right]\% \\

&= 16.67\%.

\end{align*}

Clearly, the percentage increase over previous year is highest for **1992 - 1993**