Test: Graph Interpretation- 2 - GMAT MCQ

(B ) 14.54%

Total Revenues = $ (70+32+20+6+92) Billion = $ 220 Billion
Part of Revenue collected from Excise Tax = $32 Billion
Percentage of Revenue collected from Excise Tax = 32/220×100 = 14.54%

(A ) 30.37%

Total Expenditures as given in the figure = $(34+71+47+68) Billion = $220 Billion

Savings = Revenues – Expenditures
6 = 220 – Expenditures
Expenditures = 220 – 6 = 214
Hence, the expenditures must be decreased by $6 Billion in the National Security because all the other Expenditures are the same.

So, Reduced expenditures of National Security = 71-6 = $65 Billion

Percentage of Reduced expenditures of National Security = 65/214×100 = 30.37 %

The common region contains 40 people and the total number of people is 250 → 40/250 → 4/25

Either one Both have the same probability, so either one can be chosen.

Total number of students = 18+3+17+5+7+6+14 = 70
Number of students taking two subjects = 3+5+7+6 = 21
Probability of student taking two subjects = 21/70 = 0.2957 = 0.3

(B ) Decreases

Current number of students in Mathematics = 17+3+7+6 = 33
After doubling the number of students in Mathematics = 2×33 = 66
Current total number of students in all the subjects = 70
After doubling the number of student in Mathematics, total students = 70+33 = 103
Number of students in Chemistry = 18+3+7+5 = 33
Current probability of students taking Chemistry = 33/70 = 0.47
After doubling the students in Mathematics, probability of students taking Chemistry = 33/103 = 0.32
So, the probability of students taking Chemistry will decrease.

Organization A

Organization A was more successful throughout the week as the amount of money earned by organization A on all the days, except Monday and Friday, are higher than that of organization B by much larger values.

Organization B

On Monday, organization A earned about $16000 and organization B earned about $20,000. On Tuesday, Organization A earned about $26,000 and organization B earned about $10,000. On Friday, Organization A earned about $12,000 and organization B earned about $16,000. So the total amount of money earned by Organization A (i.e., $54000) is higher than that of organization B (i.e., $46000).

(C ) 46

Total marks = 450
Total marks for Chemistry = 25% of 450 = 115
Passing limit for Chemistry = 40%
40% of 115 = 46
Hence, the student must get 46 marks to pass the subject Chemistry.

(B ) 10%

Current percent for Chemistry = 25%
25% of 460 = 115
Reducing marks by 23 will give = 115 – 23 = 92
92 of 460 = (92/460)×100 = 20%
So, percentage of Chemistry has been reduced by 5%.
In the same way, current percentage for Physics = 15%
15% of 460 = 69
Reducing marks by 23 will give = 69 – 23 = 46
46 of 460 = (46/460)×100 = 10%
So, percentage of Physics has also been reduced by 5%.
Hence, the percentage for new subject will be 5%+5% = 10%