CAT Questions

Q:

A shopkeeper has a job to print certain number of documents and there are three machines P, Q and R for this job. P can complete the job in 3 days, Q can complete the job in 4 days and R can complete the job in 6 days. How many days the shopkeeper will it take to complete the job if all the machines are used simultaneously ?

A) 4/3 days B) 2 days
C) 3/2 days D) 4 days
 
Answer & Explanation Answer: A) 4/3 days

Explanation:

Let the total number of documents to be printed be 12.

 The number of documents printed by P in 1 day = 4.

 The number of documents printed by Q in 1 day = 3.

 The number of documents printed by R in 1 day = 2.

 
Thus, the total number of documents that can be printed by all the machines working simultaneously in a single day = 9.

 

Therefore, the number of days taken to complete the whole work = 12/9 = 4/3 days.

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Filed Under: Time and Work
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
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Q:

"Kargil Vijay Diwas" was observed on _____.

A) 26 July B) 27 July
C) 25 July D) 29 July
 
Answer & Explanation Answer: A) 26 July

Explanation:
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Filed Under: Important Days and Years
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Q:

A person who builds houses

A) Architect B) Builder
C) Bricklayer D) Contractor
 
Answer & Explanation Answer: B) Builder

Explanation:

A person who builds houses or buildings is known as builder.

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Filed Under: English
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1 3145
Q:

Numismatics is the study of

A) Numbers B) Coins
C) Stamps D) None
 
Answer & Explanation Answer: B) Coins

Explanation:

Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects.

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Q:

The school principal has received complaints from parents about bullying in the school yard during recess. He wants to investigate and end this situation as soon as possible, so he has asked the recess aides to watch closely. Which situation should the recess aides report to the principal ?

A) A boy is sitting glumly on a bench reading a book and not interacting with his peers. B) Two boys are playing a one-on-one game of basketball and are arguing over the last basket scored.
C) Three boys are huddled over a handheld video game, which isn’t supposed to be on school grounds. D) Four girls are surrounding another girl and seem to have possession of her backpack.
 
Answer & Explanation Answer: D) Four girls are surrounding another girl and seem to have possession of her backpack.

Explanation:

Seeing four girls surrounding another girl, while in possession of her backpack, is the most suspicious of the incidents described.

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Filed Under: Analogy
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Q:

In India, Salt Lake City is located in

A) West Bangal B) Rajastan
C) Gujarat D) Delhi
 
Answer & Explanation Answer: A) West Bangal

Explanation:

BidhanNagar in Kolkata, West Bangal is popularly known as Salt Lake City.

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Filed Under: Indian Geography
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18 3142
Q:

Which action is the best example of a direct observation?

A) listening to a cricket chirp at night and counting the number of chirps per minute B) determining the seal population of an island by counting seals in 10 square meters of the island
C) identifying which bird was present by the tracks that it leaves in the sand at a beach D) reading numbers on a heat sensor to conclude that there is a deer in the night woods
 
Answer & Explanation Answer: A) listening to a cricket chirp at night and counting the number of chirps per minute

Explanation:
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Filed Under: General Science
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Q:

Express 3/8 and 1/10 as a Decimals?

A) 1.375 & 1 B) 0.375 & 1
C) 13.75 & 1.1 D) 0.375 & 0.1
 
Answer & Explanation Answer: D) 0.375 & 0.1

Explanation:

3/8 as a Decimal :

In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple.

Now to make 8 into 1000, we multiply numerator and denominator with 125

=> 3 x 1258 x 125 = 3751000 = 0.375

 

1/10 as a Decimal :

1 divided into 10 parts of each 0.1.

 

Therefore, 3/8 = 0.375 and 1/10 = 0.1 in decimals.

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Filed Under: Decimal Fractions
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