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Reasoning Aptitude

MATHEMATICAL OPERATIONS MCQs

Total Questions : 233 | Page 10 of 24 pages
Question 91. In the following questions, the symbols +, ×, =, ÷ and - are used with following meanings: 'P+Q' means 'P is greater than Q'.'P×Q' means 'P is either greater than or equal to Q'.'P=Q' means 'P is equal to Q'.'P÷Q' means 'P is smaller than Q'.'P-Q' means 'P is either smaller than or equal to Q'.Statements: U + V, W - Y, Y Ã— UConclusions: I. W + U   II. W Ã· V
  1.    if only conclusion I is true.
  2.    if only conclusion II is true.
  3.    if either conclusion I or II is true.
  4.    if neither conclusion I nor II is true.
  5.    if both the conclusions I and II are true.
 Discuss Question
Answer: Option D. -> if neither conclusion I nor II is true.


U > V -- (i); W ≤ Y -- (ii); Y ≥ U -- (iii)From (ii) and (iii), W â‰¤ Y â‰¥ U => no relationship between W and U can be determined. Hence, I is not true. Now, using (i), again no relationship between W and V can Determined.


Question 92. In the following questions, the symbols +, ×, =, ÷ and - are used with following meanings: 'P+Q' means 'P is greater than Q'.'P×Q' means 'P is either greater than or equal to Q'.'P=Q' means 'P is equal to Q'.'P÷Q' means 'P is smaller than Q'.'P-Q' means 'P is either smaller than or equal to Q'.Statements: G - H, K Ã— L, L - GConclusions: I. G Ã· K   II. L - H
  1.    if only conclusion I is true.
  2.    if only conclusion II is true.
  3.    if either conclusion I or II is true.
  4.    if neither conclusion I nor II is true.
  5.    if both the conclusions I and II are true.
 Discuss Question
Answer: Option B. -> if only conclusion II is true.


G ≤ H -- (i); K ≥ L -- (ii); L ≤ G -- (iii)From (ii) and (iii), we get K â‰¥ L â‰¤ G => I can't be established.From (i) and (iii), we get L â‰¤ G â‰¤ H => L â‰¤ H.Hence, II is true.


Question 93. In the following questions, the symbols +, ×, =, ÷ and - are used with following meanings: 'P+Q' means 'P is greater than Q'.'P×Q' means 'P is either greater than or equal to Q'.'P=Q' means 'P is equal to Q'.'P÷Q' means 'P is smaller than Q'.'P-Q' means 'P is either smaller than or equal to Q'.Statements: M Ã· N, P Ã— Q, P + NConclusions: I. N + Q   II. N - Q
  1.    if only conclusion I is true.
  2.    if only conclusion II is true.
  3.    if either conclusion I or II is true.
  4.    if neither conclusion I nor II is true.
  5.    if both the conclusions I and II are true.
 Discuss Question
Answer: Option C. -> if either conclusion I or II is true.


M < N -- (i); P ≥ Q -- (ii); P > N -- (iii)From (ii) and (iii), we get N < P â‰¥ Q => NO relationship between N and Q can be established. But I and II together are exhaustive. Hence either I or II is true.


Question 94. In the following questions, the symbols +, ×, =, ÷ and - are used with following meanings: 'P+Q' means 'P is greater than Q'.'P×Q' means 'P is either greater than or equal to Q'.'P=Q' means 'P is equal to Q'.'P÷Q' means 'P is smaller than Q'.'P-Q' means 'P is either smaller than or equal to Q'.Statements: S Ã— Q, R + T, R - SConclusions: I. S + T   II. Q = T
  1.    if only conclusion I is true.
  2.    if only conclusion II is true.
  3.    if either conclusion I or II is true.
  4.    if neither conclusion I nor II is true.
  5.    if both the conclusions I and II are true.
 Discuss Question
Answer: Option A. -> if only conclusion I is true.


S ≥ Q -- (i); R > T -- (ii); R ≤ S -- (iii)From (ii) and (iii), we get D â‰¤ S â‰¥ R > T => No relationship between Q and T can be determined. Hence II is not true. But S > T. Hence, I is true.


Question 95. Which of the following is a standard code used to exchange information among data processing and communication systems?
  1.    ANSI
  2.    ACM
  3.    ASCII
  4.    APL
  5.    OSI
 Discuss Question
Answer: Option C. -> ASCII


-NA-


Question 96. Which of the following best explains RAM?A. It is an acronym for Random Access Memory.B. It is memory built from silicon chips that is used to store programs and data temporarily while they are being processed.C. Read Access Memory
  1.    Only A and C
  2.    Only B and C
  3.    Only A and B
  4.    All the three
  5.    None of these
 Discuss Question
Answer: Option C. -> Only A and B


-NA-


Question 97. Conversion of computer-generated result in to human-acceptable form is a function of:
  1.    CPU
  2.    Input interface
  3.    Output interface
  4.    RAM
  5.    None of these
 Discuss Question
Answer: Option C. -> Output interface


-NA-


Question 98. The storage device used to compensate for the difference in rates of flow of data from one device to another is termed as:
  1.    Chip
  2.    Channel
  3.    Floppy
  4.    Call
  5.    Buffer
 Discuss Question
Answer: Option E. -> Buffer


-NA-


Question 99. The components of a computer system with the circuitry to control interpretation and execution of instructions is known as:
  1.    ALU
  2.    Memory
  3.    Control
  4.    CPU
  5.    None of these
 Discuss Question
Answer: Option D. -> CPU


-NA-


Question 100. The computer as a machine and all other equipment associated with it, are termed as:
  1.    Hardware
  2.    Software
  3.    Firmware
  4.    Humanware
  5.    None of these
 Discuss Question
Answer: Option A. -> Hardware


-NA-


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