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Placement paper 12
Posted Date: 29 Feb 2008 Resource Type: Articles/Knowledge Sharing Category: Placement Papers
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Posted By: Deepu Member Level: Diamond
Rating:  Points: 5
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51.In how many ways can a lock be opened if that lock has three digit number lock if
i) the last digit is 9
ii) and sum of the first two digits is less than or equal to the last digit.
numbers are from 0-9
52.In pure milk if 20% replaced by water and in this again 20% is replaced by water and again 20% is replaced by water then what is the proportion of milk in that mixture?
Ans: 51.2%
53.If a man reduces the selling price of a fan from 400 to 380 his loss increases by 20% .What is the cost price of fan
ans:50
54.(998-1)(998-2)(998-3)????..(998-n)=------- when n>1000
Fibonacci series and palindrome program in C
Abt Gates(Be prepare on Digital Circuit Logic Design)
Abt complier design(phases)
bt TCP&IP and OSI Model.
Abt OOPS concepts.
55. Given $ means Tripling and % means change of sign then find the value of $%$6-%$%6
Ans: -74
56. My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs later at a place with coordinates 36N70W. What is the local time when my plane landed?
6:00 am b) 6:40am c) 7:40 d) 7:00 e) 8:00
Ans: (Hint: Every 1 deg longitude is equal to 4 minutes. If west to east add time else subtract time)
57. Which of the following set of numbers has the highest Standard deviation?
a)1,0,1,0,1,0 b) -1, -1, -1, -1, -1, -1
c)1,1,1,1,1,1 d) 1,1,0, -1,0, -1
Ans: d ( hope so )
58. If two pencils cost 8 cents, then how much do 5 pencils cost?
Ans. 20 cents
59. Some work is done by two people in 24 minutes. One of them can do this work alone in 40 minutes. How much time does the
second person take to do the same work ?
Ans. 60 minutes
60. A car is filled with four and half gallons of fuel for a round trip.If the amount of fuel taken while going is 1/4 more
than the amount taken for coming, what is the amount of fuel consumed while coming back?
Ans.2 gallons
61. The lowest temperature in the night in a city A is 1/3 more than 1/2 the highest during the day. Sum of the lowest
temperature and the highest temperature is 100 degrees. Then what is the low temp?
Ans.40 degrees
62. Javagal, who decided to go to weekened trip should not exceed 8 hours driving in a day. The average speed of forward
journey is 40 miles/hr.Due to traffic on sundays, the return journey's average speed is 30 m/h. How far he can select a
picnic spot?
a) 120 miles
b) between 120 and 140 miles
c) 160 miles
Ans. 120 miles
63. A salesperson by mistake multiplied a number and got the answer as 3, instead of dividing the number by 3.What is the
answer he should have actually got?
Ans. 3
64. A building with height D shadow upto G. What is the height of a neighbouring building with a shadow of C feet.
Ans. (C*D)/G
65. A person was fined for exceeding the speed limit by 10 mph. Another person was also fined for exceeding the same speed
limit by twice the same. If the second person was travelling at a speed of 35 mph, find the speed limit.
Ans. 15 mph
66. A bus started from bustand at 8.00am, and after staying for 30 minutes at a destination, it returned back to the busstand
The destination is 27 miles from the busstand. The speed of the bus is 18mph. During the return journey bus travels with 50%
faster speed.At what time does it return to the busstand?
Ans. 11.00am
67. In a mixture, R is 2 parts and S is 1 part. In order to make S to 25% of the mixture, how much of R is to be added?
Ans.One part of R
ANS: 3.5 INCHES
68.In some game 139 members have participated every time one fellow will get bye what is the number of matches to choose the champion to be held?
ans: 138
69. one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do together in how much time they will finish.
ans: 1hr 12min
70.in 8*8 chess board what is the total number of squares refer Model
ans:204
71.2 oranges, 3 bananas and 4 apples cost Rs.15. 3 oranges 2 bananas 1 apple costs Rs.10. what is the cost of 3 oranges, 3 bananas and 3 apples?
Ans: Rs.15
72. G(0)=-1, G(1)=1, G(N)=G(N-1) - G(N-2), G(5)= ?
ANS:-2
73. with 4/5 full tank vehicle travels 12 miles, with 1/3 full
tank how much distance travels
Ans: 5 miles.
74. two trees are there. one grows at 3/5 of the other. in 4
years, total growth of trees is 8 ft. what growth will smaller tree will
have in 2 years.
Ans: 1.5 ft
75. A storm will move with a velocity of towords the center in
hours. At the same rate how much far will it move in hrs.
Ans 8/3 or 2 2/3
76. There are 150 weights .Some are 1 kg weights and some are 2 kg weights. The sum of the weights is 260.What is the
number of 1kg weights?
Ans. 40
77. A is driving on a highway when the police fines him for overspeeding and exceeding the limit by 10 km/hr.At the same
time B is fined for overspeeding by twice the amount by which A exceeded the limit.If he was driving at 35 km/hr what is
the speed limit for the road?
Ans. 15 kmph
78. A moves 3 kms east from his starting point . He then travels 5 kms north. From that point he moves 8 kms to the east.
How far is A from his starting point?
Ans. 13 kms
79. The sum of the digits of a two digit number is 8. When 18 is added to the number, the digits are reversed. Find the
number?
Ans. 35
80. The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers
is Rs.32.How much will three pencils, three pens and three erasers cost?
Ans. 27
81. Fathers age is 5 times his son's age. 4 years back the father was 9 times older than son.Find the fathers' present age.
Ans. 40 years
82. What number should be added to or subtracted from each term of the ratio 17 : 24 so that it becomes equal to 1 : 2.
Ans. 10 should be subtracted
83. What is the 12th term of the series 2, 5, 8, ....
Ans. 35
84. If 20 men take 15 days to to complete a job, in how many days can 25 men finish that work?
Ans. 12 days
85. In a fraction, if 1 is added to both the numerator at the denominator, the fraction becomes 1/2. If numerator is
subtracted from the denominator, the fraction becomes 3/4. Find the fraction.
Ans. 3/7
86. If Rs.1260 is divided between between A, B and C in the ratio 2:3:4, what is C's share?
Ans. Rs. 560
87. A shopkeeper bought a watch for Rs.400 and sold it for Rs.500.What is his profit percentage?
Ans. 25%
88. What percent of 60 is 12?
Ans. 20%
89. Hansie made the following amounts in seven games of cricket in India: Rs.10, Rs.15, Rs.21, Rs.12, Rs.18, Rs.19 and
Rs.17(all figures in crores of course).Find his average earnings.
Ans. Rs.16 crore
90. One night Ram was studying for his examination when the lights went out. He lighted two candles at the same time,
both of equal length, one thicker than the other. The thick candle is supposed to last six hours and the thin one two hours
less. When he finally went to sleep the thick candle was twice as long as the thin one. For how long did he study by
candlelight?
Ans : 3
91.A truck driver must complete a 180-mile trip in 4 hours. If he averages 50 miles an hour for the first three hours of
his trip; how fast must he travel in the final hour?
Ans: 30mph
92. If the product of 3 consecutive integers is 210 then the sum of the two smaller integers is:
Ans: 11
93.A worker is paid Rs. 20 for each day he works, and is paid proportionately for any fraction of a day he works. If during
one week he works 1/8, 2/3, 3/4, 1/3, and 1 full day, what are his total earnings for the week?
Ans: 57.50
94. A drawer contains 6 red socks and 4 blue socks. What is the probability that if 2 socks are picked (without looking) from
the drawer, both of the socks will be red?
Ans : 1/3
95. If a triangle has base B and the altitude of the triangle is twice the base then the are a of the triangle is:
Ans: B*B
96.If the side of a square increases by 40% then the area of the square increases by:
Ans: 96%
97.If 32 students in a class are female and there are 18 male students in the class, what percentage of the class is female?
Ans : 64%
98.Dictionaries weigh 6 pounds each and a set of encyclopedias weighs 75 pounds. 20 dictionaries are shipped in each box, 2
sets of encyclopedias are shipped in each box. A truck is loaded with 98 boxes of dictionaries and 50 boxes of encyclopedias. How much does the truckload weigh?
Ans: 19260 pounds
99. A clerk multiplied a number by ten when ten should have divided it. The answer he got was 100.what should the ans have been?
ans: 1
100. A 16-stored building has 12000 sq.feet on each floor. Company A rents 7 floors and company B rents 4 floors. What is the
number of sq.feet of unrented floor space?
Ans: 60000
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