GATE Questions

Q:

A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ?

A) 25 B) 24
C) 23 D) 21
 
Answer & Explanation Answer: A) 25

Explanation:

(A+B+C) do 1 work in 10 days.

So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5


Remaining work=1-2/5=3/5

 

(B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50


Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25

A does 1/25 work in in 1 day

Therefore 1 work in 25 days.

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123 49971
Q:

Which is a green planet in the solar system?

A) Pluto B) Venus
C) Uranus D) Mars
 
Answer & Explanation Answer: C) Uranus

Explanation:

Uranus is the seventh planet from the Sun which looks green color. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn.

 

Which_is_a_green_planet_in_the_solar_system1558075325.jpg image 

 

Colors of other planets::

 

Mercury - Gray or slightly brownish

 

Venus - Pale yellow

 

Earth - Blue with white clouds

 

Mars - Mostly reddish brown

 

Jupiter - Orange and white bands

 

Saturn - Pale gold

 

Uranus - Green

 

Neptune - Pale blue

 

Pluto - Light brown

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87 49845
Q:

Which alphabet replaces the question mark ?

63 O 49
72 T 37
96 L 15
14 ? 58

A) A B) B
C) C D) D
 
Answer & Explanation Answer: C) C

Explanation:

6-3 = 3 9-4 = 5 (3x5=15) 15=O
7-2 = 5 7-3 = 4 (5x4=20) 20=T
9-6 = 3 5-1 = 4 (3x4=12) 12=L

Similarly, 4-1 = 3 8-5 = 1 (3x1=3) 3=C

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Filed Under: Alphabet Test
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43 49012
Q:

26 january 1950 which day of the week?

A) Monday B) Wednesday
C) Thursday D) Tuesday
 
Answer & Explanation Answer: C) Thursday

Explanation:

We know that,

Odd days --> days more than complete weeks

Number of odd days in 400/800/1200/1600/2000 years are 0.

Hence, the number of odd days in first 1600 years are 0.

Number of odd days in 300 years = 1

Number of odd days in 49 years = (12 x 2 + 37 x 1) = 61 days = 5 odd days

Total number of odd days in 1949 years = 1 + 5 = 6 odd days

Now look at the year 1950

Jan 26 = 26 days = 3 weeks + 5 days = 5 odd days

Total number of odd days = 6 + 5 = 11 => 4 odd days

 

Odd days :-

0 = sunday ;

1 = monday ;

2 = tuesday ;

3 = wednesday ;

4 = thursday ;

5 = friday ;

6 = saturday

 

Therefore, Jan 26th 1950 was Thursday.

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204 48682
Q:

Find the Odd one out of the given series

6, 15, 35, 77, 165, 221

A) 221 B) 165
C) 35 D) 77
 
Answer & Explanation Answer: B) 165

Explanation:

The terms of the series are products of two consecutive prime numbers i.e.

(2 x 3), (3 x 5), (5 x 7), (7 x 11),.....

So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.

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16 48188
Q:

Exhibit : display :: send : ?

A) Stamp B) Receive
C) Show D) Emit
 
Answer & Explanation Answer: D) Emit

Explanation:

Here the given words represent synonyms.

Exhibit and Display are synonyms for each other. Similarly, Send and Emit are synonyms for each other.

 

Hence, Exhibit : display :: send : Emit.

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Filed Under: Analogy
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93 47940
Q:

6 : 18 :: 4 : ?

A) 14 B) 6
C) 16 D) 8
 
Answer & Explanation Answer: D) 8

Explanation:

Here the given number analogy follows two patterns that,

18 --> 6 x 3

4

12 --> 4 x 3

 

OR

6

18 ----> 6x6/2 = 18

4

8 ----> 4x4/2 = 8

 

As 12 is not available in the options, 8 is correct answer.

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196 47686
Q:

Choose the antonym of the word given from the following options ?

MUNDANE

A) Extraordinary B) Regular
C) Visionary D) Routine
 
Answer & Explanation Answer: A) Extraordinary

Explanation:
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