Data Interpretation MCQ Questions and Answers

Directions (1 - 4): The graph shows the exchange reserve of a country in difference years. Study the graph and answer the questions.
Direction image of Bar Chart chapter

Ratio of the sum of exchange during the year 1991-92, 1992-93, 1993-94, to that during the years 1995-96, 1996-97 and 1997-98 is:

A) 31 : 35 B) 35 : 31 C) 37 : 52 D) 52 : 37

Discuss

Answer & Solution

Reserve in year 1991-92, 1992-93 and 1993-94
= 2640 + 3720 + 2520
= 8880
Reserve in year 1995-96, 1996-97 and 1997-98
= 3120 + 4320 + 5040
= 12480
∴ Required ratio
= 8880 : 12480
= 37 : 52

The exchange reserves in 1996 - 1997 were approximately what percent of the average exchange reserve over the period under review?

A) 95% B) 110% C) 115% D) 124%

Discuss

Answer & Solution

$$\eqalign{ & \text{Required %} \cr & = \frac{4320}{3480} \times 100 \cr & = 124.137 \approx 124\% \cr} $$

The percentage increase in the foreign exchange reserves in 1997 - 98 over 1993 - 94 is:

A) 100% B) 150% C) 200% D) 120%

Discuss

Answer & Solution

$$\eqalign{ & \text{Reserve in 1993 - 94 = 2520} \cr & \text{Reserve in 1997 - 98 = 5040} \cr & \text{Increase %} \cr & = \frac{5040 - 2520}{2520} \times 100\% \cr & = \frac{2520}{2520} \times 100 \cr & = 100\% \cr} $$

The ratio of number of years, in which the foreign exchange reserves are above the average reserves, to those in which the reserves are below the average reserves is:

A) 2 : 6 B) 3 : 4 C) 3 : 5 D) 4 : 4

Discuss

Answer & Solution

Average reserves
$$= \frac{2640+3720+2520+3360+3120+4320+5040+3120}{8}$$
$$\eqalign{ & = \frac{27840}{8} \cr & = 3480 \cr & \text{So, required ratio }=3:5 \cr} $$
Note :
Years in which the foreign exchange reserves are above the average reserves = 1992-93, 1996-97, 1997-98 = 3 years
Years in which the foreign exchange reserves are below the average reserves = 1991-92, 1993-94, 1994-95, 1995-1996, 1998-1999 = 5 years

Data Interpretation MCQ Questions and Answers - Bar Chart