GATE Questions and Answers with Explanation

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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Subject: Bar Charts Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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Q:

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

What_can_run_but_never_walks1533298429.jpg image

Answer

A river which can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps.

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Subject: Word Puzzles Exam Prep: GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

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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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Filed Under: Arithmetical Reasoning
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Q:

Find which of the two conclusions I and II given below is/are definitely true from the the given statements.

Statements: I > W > T > N, I = F = G = C

Conclusions: I. W > I

II. C > N

A) Only Conclusion I is true	B) Only Conclusion II is true
C) Both conclusions I & II are true	D) Neither conclusion I nor II is true

Answer & Explanation Answer: B) Only Conclusion II is true

Explanation:

From the given Statements :

1. I > W > T > N

2. F = G = C

Conclusions are :

I. W > I (False)

II. C > N (True)

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Filed Under: Statement and Conclusions
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Q:

A man buys a trouser in Rs.1250. By reduction of 20% in the price of trouser, he can purchase a t-shirt also in the same amount that was initially paid for the trouser. Find the price of the t-shirt?

A) Rs. 250	B) Rs. 125
C) Rs. 225	D) Rs. 200

Answer & Explanation Answer: A) Rs. 250

Explanation:

Initial amount spent on trouser by the man = Rs. 1250

Now, by the reduction of 20% in 1250, he can buy t-shirt too.

=> t-shirt cost = 20% of 1250 = 20 x 1250/100 = 250

Therefore, the price of the t-shirt = Rs. 250.

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Filed Under: Profit and Loss
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

If a > b > 0, AB = a - b cm, BC = 2√ab cm, then ∠ABC is

A) 45°	B) 60
C) 90°	D) 120°

Answer & Explanation Answer: C) 90°

Explanation:

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Filed Under: Quantitative Aptitude - Arithmetic Ability
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Q:

Al Aziziyah, the hottest place on earth is located in?

A) Nigeria	B) Congo
C) Libya	D) Sudan

Answer & Explanation Answer: C) Libya

Explanation:

Al Aziziyah, the hottest place on earth is located in Libya, in North Africa. On 13 September 1922, a high temperature of 58.0 °C was recorded in Al Aziziyah.

Al_Aziziyah,_the_hottest_place_on_earth1557403285.jpg image

This is considered the highest temperature ever measured on Earth.

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Filed Under: World Geography
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Q:

What is a Common Multiple?

Answer

If the Multiples for two or more numbers which are Common, then those Multiples are said to be Common Multiples.

For Example :

Multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30,...

Multiples of 5 are 5, 10, 15, 20, 25, 30,...

Here common multiples of 3 & 5 upto 30 are 15, 30.

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Subject: HCF and LCM Exam Prep: AIEEE , Bank Exams , CAT , GATE
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