Expenditure increased = Expenditure in 1997 ? 98 - Expenditure in 1993 ? 94
Expenditure increased = 8800 ? 5100 = 3700.
As we know the formula,
Profit = Sales - Expenses
Solve option one by one.
Option (A) in year 1998
Profit in year 1998 = Sales in 1998 - Expenses in 1998
Profit in year 1998 = 800 - 700 = 100
Capital in year 1998 = 200 (As per given graph)
Ratio of profit to capital in year = 100 / 200 = 0.5
Similarly Option (B) in year 1995
Profit in year 1995 = Sales in 1995 - Expenses in 1995
Profit in year 1995 = 500 - 400 = 100
Capital in year 1995 = 100 (As per given graph)
Ratio of profit to capital in year = 100 / 100 = 1
Similarly Option (C) in year 1996
Loss in year 1996 = Sales in 1996 - Expenses in 1996
Loss in year 1996 = 500 - 400 = 100
Profit in year 1996 = 500 - 400 = - 100
Capital in year 1996 = 100 (As per given graph)
Ratio of profit to capital in year = - 100 / 100 = -1
Similarly Option (D) in year 1997
Loss in year 1997 = Sales in 1997 - Expenses in 1997
Loss in year 1997 = 600 - 400 = 200
Profit in year 1997 = 600 - 400 = - 200
Capital in year 1997 = 200 (As per given graph)
Ratio of profit to capital in year 1997 = Profit / Capital
Ratio of profit to capital in year 1997 = - 200 / 200 = -1
As we can see the year 1995 has the highest ratio for Profit to capital.
From above diagram ,
The total number of students who come to school by car is represented in pie chart = 70°
The total number of students who come to school by bus is represented in pie chart = 90°
Required ratio = 70° : 90° = 7 : 9 = 21 : 27
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