71.

The angles of elevation of top and bottom of a flag kept on a flag post from 30 m distance are  and  respectively. Height of the flag is [taking ]

• 

• 15 m

• 14.32 m

• 14.32 m

Study the following bar-diagram carefully and answer the questions. The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.


The ratio of the 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

• 2 : 6

• 3 : 4

• 3 : 5

• 3 : 5

Study the following bar-diagram carefully and answer the questions. The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.


The foreign exchange reserves in 1996-97 were approximately what percent of the average foreign exchange reserves over the period under review?

• 95%

• 110%

• 115%

• 115%

Study the following bar-diagram carefully and answer the questions. The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.


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

• 100%

• 150%

• 200%

• 200%

Study the following bar-diagram carefully and answer the questions. The bar graph given below shows the foreign exchange reserves of a country (in million US $) from 1991 - 1992 to 1998 - 1999.


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

• 31 : 35

• 35 : 31

• 37 : 52

• 37 : 52