1. A and B each working alone can do a work in 15 days and 25 days, respectively. They started the work together but B left after some time and A finished the remaining work in 7 days. After how many days from the start did B leave?
(1) 3
(2) 5
(3) 7
(4) 9
(5)None of the above
2. A contract is to be completed in 50 days and 105 men were set to work, each working 8 h a day. After 25 days, 2/5th of the work is finished. How many additional men be employed, so that the work may be completed on time, each man now working 9 h a day?
(1) 34
(2) 36
(3) 35
(4) 37
(5) None of the above
3. The average age of 14 girls and their teacher’s age is 15 yr. If teachers age is excluded, then the average reduced by 1. What is the teacher’s age?
(1) 29 yr
(2) 35 yr
(3) 32 yr
(4) 30 yr
(5) None of the above
4. The average temperature of Delhi for four days in a particular month is 48°C. If the average temperature of second and third days is 34°C and the ratio of the temperatures of first and fourth days is 9 : 11, then find out the temperatures of first and fourth days.
(1) 45.5°C, 49.9°C
(2) 32.4°C, 39.8°C
(3) 43.4°C, 68.2°C
(4) 52.4°C, 46.8°C
(5) None of the above
5. 60 kg of an alloy A is mixed with 100 kg of alloy B. If alloy A has lead and tin in the ratio 3 : 2 and alloy B has tin and copper in the ratio 1 : 4, then the amount of tin in the new alloy is:
(1) 36 kg
(2) 44 kg
(3) 53 kg
(4) 80 kg
(5) None of the above
Directions (6-10): Study the following table and answer the questions given below.
The following table details the revenue of three major Indian software companies A, B and C and total revenue of all Indian software companies from 2008 to 2012.
Year
|
A
(in crores)
|
B (in crores)
|
C
(in crores)
|
Total
(including all companies)
|
2008
|
587
|
897
|
303
|
1891
|
2009
|
1030
|
1135
|
410
|
2660
|
2010
|
1275
|
1531
|
510
|
3460
|
2011
|
1820
|
2070
|
700
|
4720
|
2012
|
2400
|
2800
|
1025
|
6300
|
6. What is the simple growth rate of the total revenue from 2008 to 2012?
(1) 233%
(2) 258%
(3) 235%
(4) 242%
(5) Cannot be determined
7. Which of the following statements is/are true?
I. The revenue has shown the highest growth rate for company B.
II. If revenues of company C grows at the same rate from 2013 to 2017 as 2008 to 2012, then output in 2017 will be Rs.2100 crore.
III. The ratio of revenues of company A and C in 2010 is 1:4.
(1) Only I
(2) Only II
(3) Only III
(4) Both I and III
(5) None of these
8. If the share of company B’s revenue in the total remains same in 2014 as in 2012; and in 2014, the total output is Rs. 9000 cr, the revenue of company B in 2014 is
(1) Rs.4000 cr
(2) Rs.3000 cr
(3) Rs.2000 cr
(4) Rs.2500 cr
(5) Cannot be determined
9. Which of the following statements is/are true?
I. Revenues of company B grew at a (simple rate of ) 22% per annum from 2008 to 2012.
II. Total revenue of A, B and C grew at (a simple rate of) 15% per annum on an average from 2008 to 2012..
III. Revenues of company A is growing fastest during the period shown above.
(1) Only I
(2) Only III
(3) II and III
(4) Both I and II
(5) None of these
10. What was the total Revenue of software companies other than those mentioned in the table in 2009 in crores?
(1) 85
(2) 75
(3) 109
(4) 65
(5) Cannot be determined
ANSWER
1. (2)
2. (3)
3. (1)
4. (5)
5. (2)
6. (1)
7. (5)
8. (1)
9. (2)
10. (1)
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MAHENDRA GURU