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Fact 1: Mary said, "Ann and I both have cats."
Fact 2: Ann said, "I don't have a cat."
Fact 3: Mary always tells the truth, but Ann sometimes lies.

If the first three statements are facts, which of the following statements must also be a fact?
I: Ann has a cat.
II: Mary has a cat.
III: Ann is lying.
Six persons Ann, Brian, Cody, Dany, Ethan & Fathima are standing in a circle facing inside. Brian is between Dany & Cody. Ann is between Ethan & Cody. Fathima is at the right of Dany. Who is between Ann & Fathima?
In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.  Ann received the promotion instead of Susan (A) / as Ann is senior than Susan in age (B)/ though Susan had started working there before Ann's joining.(C)/ No error(D) 
Consider the following statements with respect to the feedback from the control systems: 1. The feedback can improve stability or be harmful to stability if it is not properly applied. 2. The feedback can always improve stability. 3. In many situations, the feedback can reduce the effect of noise and disturbance on system performance. 4. In general, the sensitivity of the system gain of a feedback system of a parameter variation depends on where the parameter is located. Select the correct statements.
Consider the following statements with respect to the feedback of the control systems. i. Feedback can improve stability or be harmful to stability if it is not properly applied. ii. Feedback can always improve stability iii. In many situations the feedback can reduce the effect of noise and disturbance on system performance. iv. In general the sensitivity of the system gain of a feedback system of a parameter variation depends on where the parameter is located.
Consider the following statements with respect to the feedback of the control systems: 1. Feedback can improve stability or be harmful to stability if it is not properly applied. 2. Feedback can always improve stability 3. In many situations the feedback can reduce the effect of noise and disturbance on system performance. 4. In general the sensitivity of the system gain of a feedback system of a parameter variation depends on where the parameter is located.
In a row, George, James, Ann, Kim and John are seated. George does not sit next to Ann, James sits two places to the right of John. If Kim is sitting two places from the extreme right and two places to the right of George, then who sits at the extreme left end of the row?
Make a sentence from the words in brackets using the appropriate tense:
The month of October is going on and you are talking about Ann's earning of last year.____________________ (Ann / not / earn / so much / last year)
Consider the circuit shown below. Consider A: Current-shunt feedback B: Current-series feedback C: Voltage-shunt feedback D: Voltage-series feedback Which of the above are present?
Which of the following statements regarding tree are correct? (A) All the links of a tree together does not constitute the complement of the corresponding tree (B) A connected subgraph of a connected graph is a tree if there exist (n - 1) nodes of the group (C) A connected subgraph of a connected graph is a tree if there exist many paths between any pair of nodes in it (D) The number of terminal nodes of end vertices of every tree are atleast two (E) Every connected graph has atleast one tree Choose the correct answer from the options given below: (1) (A) and (B) only (2) (B) and (C) only (3) (B) and (D) only (4) (D) and (E) only