Bar Graph Quiz- 1

Explanation: Total income of Companies M and N together = (35 + 50) million US $ = 85 million US $ Total expenditure of Companies M and N together = (45 + 40) million US $ = 85 million US $. Therefore Percent Profit/Loss of companies M and N together % Profit/Loss = ((85-85)/85)x100%= 0%. Thus, there was neither loss nor profit for companies M and N together.

Video solution:

Explanation: Total income of all five companies
= (35 + 50 + 40 + 40 + 50) million US $
= 215 million US $.
Total expenditure of all five companies
= (45 + 40 + 45 + 30 + 45) million US $
= 205 million US $. Therefore % Profit = ((215-205)/205)x100% = 4.88% ~= 5%.

Explanation: Let the expenditure of Company R in 2000 be x million US $.
Then, expenditure of Company R in 2001 = ( 120/100xx) million US $.
Therefore 120x/100= 45 => x = 37.5.
i.e., expenditure of Company R in 2000 = 37.5 million US $.
Let the income of Company R in 2000 be I million US $. Then, 10 = ((I-37.5)/37.5)x100 [ Ref %Profit in 2000 = 10%]
=> I - 37.5 = 3.75
=> I = 41.25
i.e., Income of Company R in 2000 = 41.25 million US $.

 

Explanation: Average foreign exchange reserves over the given period = 3480 million US $. The country had reserves above 3480 million US $ during the years 1992-93, 1996-97 and 1997-98, i.e., for 3 years and below 3480 million US $ during the years 1991-92, 1993-94, 1994-95, 1995-56 and 1998-99 i.e., for 5 years. Hence, required ratio = 3 : 5.

Explanation: Required ratio = 5040/3360 = 1.5.

Explanation: Average foreign exchange reserves over the given period = [ 1/8 x (2640 + 3720 + 2520 + 3360 + 3120 + 4320 + 5040 + 3120) ] million US $ = 3480 million US $. Foreign exchange reserves in 1996 - 1997 = 4320 million US $. Therefore Required percentage = ( 4320/3480 x 100 ) % = 124.14% ~= 125%.

Video solution:

Explanation: Foreign exchange reserves in 1997 - 1998 = 5040 million US $. Foreign exchange reserves in 1993 - 1994 = 2520 million US $. Therefore Increase = (5040 - 2520) = 2520 US $. Therefore Percentage Increase = ( 2520/2520 x 100 ) % = 100%.

Video solution: