Zensar Previous Years Solved Sample Placement Papers
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Out of the following operators (
^,*,+,&,$), the one having the highest priority is?
(a) +
(b) $
(c) ^
(d) &
Answer: (c)
Explanation: According to the infix-to-prefix algorithm, exponentiation (^) has the highest priority among the given operators. - A train running at the speed of 108 kmph, crosses a 365-metre long platform in 21 secs. What is the length of the train?
1) 260 metres
2) 275 metres
3) 265 metres
4) 285 metres
5) None of these
Answer: 3) 265 metres - In order to pass in an examination, a student is required to get 280 marks out of the aggregate marks. Hema got 264 marks and was declared failed by 2 per cent. What is the minimum passing percentage of the examination?
1) 33
2) 35
3) 40
4) 44
5) None of these
Answer: 3) 40 - The cost of 8 fans and 14 ovens is Rs.36520. What is the cost of 12 fans and 21 ovens (in Rs.)?
1) Rs.56,800
2) Rs.54780
3) Rs.57950
4) Cannot be determined
5) None of these
Answer: 1) Rs.56,800 - The average of four consecutive odd numbers P, Q, R and S respectively (in increasing order) is 104. What is the sum of P and S?
1) 204
2) 208
3) 206
4) 212
5) None of these
Answer: 2) 208 -
If the angle between the vectors **a** and **b** is π/3, what is the angle between -5**a** and 6**b**?
(a) π/6
(b) 2π/3 (Ans)
(c) 2π/5
(d) 3π/7
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What is the degree of the differential equation d²y/dx² - √(1 + (dy/dx)³) = 0?
(a) 1 (Ans)
(b) 2
(c) 3
(d) 6
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If ∫x²/nx dx = x³/m nx + x³/n + c, then what are the values of m and n respectively?
(a) 1/3, -1/9
(b) 3, -9 (Ans)
(c) 3, 9
(d) 3, 3
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What is the principal value of cosec⁻¹(-√2)?
(a) π/4
(b) π/2
(c) -π/4 (Ans)
(d) 0
- Two liquids A and B are in the ratio 5:1 in container 1 and in container 2, they are in the ratio 1:3. In what ratio should the contents of the two containers be mixed so as to obtain a mixture of A and B in the ratio 1:1?
(a) 2:3
(b) 4:3
(c) 3:2
(d) 3:4 (Ans: D)
- A closed wooden box of thickness 0.5 cm and length 21 cm, width 11 cm, and height 6 cm, is painted on the inside. The cost of painting is Rs 70. What is the rate of painting in rupees per sq. cm?
(a) 0.7
(b) 0.5
(c) 0.1
(d) 0.2 (Ans: C)
- Find the grammatical error in the sentence:
A. I have got
B. my M.Sc. degree
C. in 1988.
D. No error.
(Ans: A) - Pick out the most effective word(s) to fill in the blank:
The grapes are now _______ enough to be picked.
(a) ready
(b) mature
(c) ripe (Ans)
(d) advanced
- Look at this series: 5.2, 4.8, 4.4, 4, ... What number should come next?
(a) 3
(b) 3.3
(c) 3.5
(d) 3.6 (Ans)
- Look at this series: 80, 10, 70, 15, 60, ... What number should come next?
(a) 20 (Ans)
(b) 25
(c) 30
(d) 50
- Look at this series: F2, __, D8, C16, B32, ... What number should fill the blank?
(a) A16
(b) G4
(c) E4 (Ans)
(d) E3
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A is two years older than B who is twice as old as C. If the total of the ages of A, B and C be 27, how old is B?
(A) 7
(B) 8
(C) 9
(D) 10
Answer: (C) 9
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Two students appeared at an examination. One of them secured 9 marks more than the other and his marks was 56% of the sum of their marks. The marks obtained by them are:
(A) 39, 30
(B) 41, 32
(C) 42, 33
(D) 43, 34
Answer: (B) 41, 32
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What percentage of numbers from 1 to 70 have 1 or 9 in the unit's digit?
(A) 1
(B) 14
(C) 20
(D) 21
Answer: (C) 20
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A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
(A) 6 hours
(B) 10 hours
(C) 15 hours
(D) 30 hours
Answer: (C) 15 hours
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A and B invest in a business in the ratio 3 : 2. If 5% of the total profit goes to charity and A's share is Rs. 855, the total profit is:
(A) Rs. 1425
(B) Rs. 1500
(C) Rs. 1537.50
(D) Rs. 1576
Answer: (B) Rs. 1500
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Three partners shared the profit in a business in the ratio 5 : 7 : 8. They had partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?
(A) 5 : 7 : 8
(B) 20 : 49 : 64
(C) 38 : 28 : 21
(D) None of these
Answer: (B) 20 : 49 : 64
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The banker's discount on a bill due 4 months hence at 15% is Rs. 420. The true discount is:
(A) Rs. 400
(B) Rs. 360
(C) Rs. 480
(D) Rs. 320
Answer: (C) Rs. 480
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The banker's gain of a certain sum due 2 years hence at 10% per annum is Rs. 24. The present worth is:
(A) Rs. 480
(B) Rs. 520
(C) Rs. 600
(D) Rs. 960
Answer: (B) Rs. 520