Common Admission Test (CAT) Questions and Answers with Explanation

Q:

Negative divided by Negative

A) -ve	B) +ve
C) 0	D) Can't be determined

Answer & Explanation Answer: B) +ve

Explanation:

We know the Mathematical rules that

$\frac{+}{+} = + \frac{+}{-} = - \frac{-}{+} = - \frac{-}{-} = +$

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Q:

The following bar graph shows the percentage of chairs produced by two companies Neel Kamal and Raj Kamal during five different years. Bar graph also shows the total no. of chairs produced in different years associated with it. Study the graph carefully to answer the following questions.

bar_g1527828671.jpg image

Question 1) Find the average no. of chairs produced by Raj Kamal in the years 2004, 2006 and 2007 together.

Question 2) What is the ratio of no. of chairs produced by Neel Kamal in the years 2007 and 2008 together to that by Raj Kamal in the same years together?

Question 3) If 12% chairs out of total chairs produced in the year 2008 were defective and in them ratio of defective chairs by Raj Kamal and Neel Kamal is 2 : 3 then find the no. of defective chairs produced by Neel Kamal in the year 2008.

Answer

Answer 1)

1/3 x (54 x 150 + 60 x 300 + 36 x 450)

= 1/3 x 42300

= 14100.

Answer 2)

Required ratio of chairs = $\frac{64 x 450 + 56 x 500}{36 x 450 + 44 x 500}$

= 56800/38200

= 284/191.

Answer 3)

Required number of chairs = $\frac{3}{5} x \frac{12}{100} x 50000$
= 3600.

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Q:

Which Bank has opened 9 SmartUp Zones in Bengaluru, Karnataka?

A) Axis Bank	B) SBI Bank
C) Karnataka Bank	D) HDFC Bank

Answer & Explanation Answer: D) HDFC Bank

Explanation:

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Q:

Read the following information carefully and answer the question below. Seven Students – A, B, C, D, E, F and G like different Pens viz, Reynolds, Cello, Parker, Rotomac, Flair, Linc and Eilcos but not necessarily in the same order. They also study in three different standards viz. 9th, 10th and 12th. Not more than three and not less than two students study in the same class. A do not likes cello pen. Persons who like cello and Flair pens, study in the same class. G studies in 10th standard but he does not likes flair pen. B studies with only one student, who likes linc pens. B does not studies with G. E likes Rotomac but he do not study in class 9. D studies in class 9 but he does not like line pen. A does not study in class 12. F does not like linc pen. The one likes Parker pen, studies in class 10. The one, who likes Reynolds pen, studies in same class with one who likes Flair pen. D likes neither Flair pen nor cello pen.

1. Who likes Parker Pen ?

(1) F (2) G (3) H (4) None

2. Three of the following four are similar in a certain way. Find the odd one ?

(1) BE (2) AD (3) EG (4) DF

3. Which three student study in the same class ?

(1) ADE (2) DFG (3) ADF (4) AEG

4. C likes which pen ?

(1) Reynolds (2) Flair (3) Cello (4) Linc

Answer

download21486193578.png image

1. Answer (2) G

2. Answer (1) BE All other pairs are in same class.

3. Answer (3) ADF in class 9.

4. Answer (4) Linc pen.

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Q:

Acidity in human sweat is an example of

A) acquired immunity	B) innate immunity
C) cell-mediated immune responses	D) adaptive immunity

Answer & Explanation Answer: B) innate immunity

Explanation:

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Q:

If $x \times y = x + y + \sqrt{x y}$ , the value of 6x24 is:

A) 41	B) 42
C) 43	D) 44

Answer & Explanation Answer: B) 42

Explanation:

$G i v e n x \times y = x + y + \sqrt{x y} H e r e x = 6, y = 24 T h e n, x \times y = 6 + 24 + \sqrt{6 x 24} 6 x 24 = 30 + \sqrt{144} = 30 + 12 = 42 .$

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Q:

Amino acids can be distinguished from one another by

A) type of bond between the R group and the rest of the molecule	B) the number of R groups found on the amino acid molecules
C) the chemical properties of their R groups	D) the chemical properties of the amino and carboxyl groups

Answer & Explanation Answer: C) the chemical properties of their R groups

Explanation:

Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid.

Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished:

1. Amino acids with H ond donor and acceptor groups.

Histidine, lysine, aspartic acid, threonine,...

2. Amino acids with donor grups only.

Arginine, tryptophan and cysteine.

3. Amino acids with acceptor groups only.

Asparagine and glutamine.

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Q:

What is the defining right of a representative democracy?

A) the right to vote	B) the right to freedom of speech
C) the right to petition the government	D) the right to freedom of religion

Answer & Explanation Answer: A) the right to vote

Explanation:

The defining right of a representative democracy is the ability to vote for representatives to make decisions on their behalf.

What_is_the_defining_right_of_a_representative_democracy1557485298.jpg image

In democratic government, elections are held regularly, in which voters vote for someone who will serve in the levels of local, state, and federal government.

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