(1-5) Data in respect of demand and production of computers of five companies. A – E are shown in the figure.
| A | B | C | D | E | |
| computer Demand | 2000 | 300 | 1250 | 600 | 1650 |
| computer production | 1000 | 900 | 500 | 1350 | 1100 |
1. The demand for computers is less than the production of computers in how many companies?
A. 4
B. 3
C. 1
D. 2
SHOW ANSWER
Explanation: In B and C demand is less than production
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2. Which company has a minimum demand to production ratio?
1. B
2. C
3. D
4. E
SHOW ANSWER
Explanation: In B & D it can be minimum.
B: 300: 900 =0.33 (Min)
D: 600: 1350= 0.44
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3. The ratio of the number of companies having more production than demand to that of companies having more demand than production is:
(1) 3:2
(2)1:4
(3) 4:1
(4) 2:3
SHOW ANSWER
Explanation: B and C : A, D, E
Ratio: 2: 3
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4. The difference between average demand and average production of computers of all companies combined together is:
1. 950
2. 190
3. 180
4. 850
SHOW ANSWER
Explanation: Total demand = 5800
Total Prod.= 4850
Diff.= 950, Avg= 950/5= 190
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5. The demand of computers of company D is more than that of the demand of the computers of company B by:
1. 1.5 times
2. 2 times
3. 2.5 times
4. 3 times
SHOW ANSWER
Explanation: 600/300
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(6-10) The following table gives the percentage of total students and also girl students enrolled in five schools (A-E). The total number of students is 4500, while the total number of girl students is 2000.
| School Name | % of Total Students Enrolled | % of Girl Students Enrolled |
| A | 20% | 15% |
| B | 30% | 35% |
| C | 25% | 12% |
| D | 15% | 25% |
| E | 10% | 13% |
6. The total number of boys enrolled in schools C, D and E is:
1. 965
2. 1250
3. 1021
4. 1325
SHOW ANSWER
Explanation: Total C, D, E=2250; Girls: 1000
Boys= 2250-1000=1250
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7. The ratio of number of girls enrolled in school B to that of the number of boys enrolled in D:
1. 1:4
2. 4:1
3. 1:3
4. 3:1
SHOW ANSWER
Explanation: Girls in B = 700 Total in D= 675 – 500 girls = 175 boys
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8. The number of girls enrolled in B, C and D constitutes what percentage (%) of total number of students in schools?
1. 30%
2. 31%
3. 32%
4. 33%
SHOW ANSWER
Explanation: (72% of 2000)= 1440/4500 x 100
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9. If 10% of the girls enrolled in C, change their school to E, then what will be the aggregate number of girls then in E?
1. 214
2. 234
3. 274
4. 284
SHOW ANSWER
Explanation: Girls in E = 260
Girls in C = 240, 10% = 240; in E = 260+24 = 284
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10. The total number of girls enrolled in schools A and B together is:
1. 740
2.760
3. 940
4. 1000
SHOW ANSWER
Explanation: (15+35)% of 2000
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