Prodex Previous Years Solved Sample Placement Papers
-
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. -
Out of the following operators (
|,*,+,&,$), the one having the lowest priority is?
(a) +
(b) $
(c) |
(d) &
Answer: (c)
Explanation: Logical OR (|) has the lowest precedence among the given operators, as defined in the infix-to-prefix algorithm. -
When an operand is read, which of the following is done?
a) It is placed on to the output
b) It is placed in operator stack
c) It is ignored
d) Operator stack is emptied
Answer: a
Explanation: While converting an infix expression to a postfix expression, when an operand is read, it is placed on to the output. When an operator is read, it is placed in the operator stack.
- A can complete a project in 20 days, and B can complete the same project in 30 days. If A and B start working on the project together and A quits 10 days before the project is completed, in how many days will the project be completed?
(a) 18 days
(b) 27 days
(c) 26.67 days
(d) 16 days (Ans: A)
- If log 2 = 0.3010, find how many digits are contained in the number 256.
(a) 15
(b) 16
(c) 17
(d) Cannot be determined (Ans: C)
- Directions for Questions 41-45: Follow the directions given below to answer the questions that follow.
Your answer for each question below would be:
- (A) if ALL THREE items given in the question are exactly ALIKE.
- (B) if only the FIRST and SECOND items are exactly ALIKE.
- (C) if only the FIRST and THIRD items are exactly ALIKE.
- (D) if only the SECOND and THIRD items are exactly ALIKE.
- (E) if ALL THREE items are DIFFERENT.
- If in the word CALIBRE, the previous letter in the English alphabet replaces each consonant and each vowel is replaced by the next letter and then the order of letters is reversed, which letter will be third from the right end?
(A) A
(B) C
(C) B
(D) K
Ans: (D) - Which word cannot be made from the letters of following word: 'OBSTETRICIAN'
a) SIREN
b) TERMITE
c) RETAIN
d) SOBER
Ans: b) TERMITE - Which one of the numbers is wrong in the following series?
4, 8, 7, 14, 12, 24, 19, 36, 28
a) 12
b) 24
c) 28
d) 36
Ans: b) 24 - Starting from a point 'P' Dinesh walked 18 metres towards south. He turned to his left and walked 25 metres. He then turned to his left and walked 18 metres. He again turned to his left and walked 35 metres and reached a point 'Q'. How far is Dinesh from the point 'P' and in which direction?
a) 10 metres East
b) 10 metres West
c) 35 metres West
d) 10 metres South
Ans: b) 10 metres West - Sun : Star::
a) Day : Night
b) Lamp : Light
c) Bed : Sleep
d) Dove : Bird
Ans: d) Dove : Bird - 'Hillock' is related to 'Mountains' in the same way as Bush is related to
a) Ground
b) Jungle
c) Plant
d) Tree
Ans: b) Jungle - Find the odd one out
a) Swan
b) Vulture
c) Ostrich
d) Eagle
Ans: a) Swan - If a person repaid Rs.22,500 after 10 years of borrowing a loan at 10% per annum simple interest find out what amount did he take as loan
a) Rs.11,225
b) Rs.11,250
c) Rs.10,000
d) Rs.7500
Ans: b) Rs.11,250 - 'A, B' and 'C' entered into partnership 'A' invested Rs.2,560 and 'B' Rs. 2,000. At end of the year they gained Rs. 1,105 out of which 'A' got Rs.320, 'C's capital was
a) Rs.4280
b) Rs.2840
c) Rs.4820
d) Rs.4028
Ans: a) Rs.4280