Free Practice Questions for Competitive Exams, Interviews, Certifications

Q:

What does it mean to calculate frequencies within a dataset?

A) to calculate the product of two variables to make a third variable	B) to count the number of cases that fall into different subgroups within a dataset
C) to count the number of times a dataset is used by a student	D) to calculate the sum of a column of variables in a dataset

Answer & Explanation Answer: B) to count the number of cases that fall into different subgroups within a dataset

Explanation:

Frequency is what means how many times the event occurs in the same period.

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Filed Under: Arithmetical Reasoning
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1 2110

Q:

Enzymes are important because they

A) maintain cell shape	B) transfer genetic information
C) contain water	D) speeds up chemical reactions

Answer & Explanation Answer: D) speeds up chemical reactions

Explanation:

Enzymes in the body are those which play an important role of breaking down the larger molecules to small and speeds up the chemical reactions.

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Filed Under: Biology
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Q:

9 letter word if you lose it you die.

It is a 9 letter word - 123456789,

If u lose it you die,

If you have 234, you can 1234,

56 is one type of disease,

89 indicates exact location & time,

2 & 7 are same letter, 3 & 8 are same letter, 5 & 9 are same letter.

Guess the word?

Answer

The required 9 letter word is HEARTBEAT.

If we lose the heartbeat, we die. 234 is EAR, if we have EAR we can 1234, i.e, HEAR.

56 is a type of disease is TB.

Workspace

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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Q:

Who is the auther of the book Atal Ji Ne Kaha?

A) Brijendra Rehi	B) Sushwanth
C) Raj singh	D) None of the above

Answer & Explanation Answer: A) Brijendra Rehi

Explanation:

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Filed Under: Books and Authors
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Q:

The book Taste of India is written by

A) Ramachandra Guha	B) Khushwanth Singh
C) Chetan Bhagat	D) Madhur Jaffrey

Answer & Explanation Answer: D) Madhur Jaffrey

Explanation:

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Q:

40% of 75 + 80% of 25 = K% of 250

Find the value of K?

A) 10	B) 20
C) 30	D) 35

Answer & Explanation Answer: B) 20

Explanation:

From the given data,

$\frac{40}{100} x 75 + \frac{80}{100} x 25 = \frac{K}{100} x 250 30 + 20 = \frac{5 K}{2} 50 x 2 = 5 K K = \frac{100}{5} = 20$

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Filed Under: Percentage
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12 74477

Q:

What type of mirror is used in car headlights?

A) Concave	B) convex
C) Both A & B	D) None of the above

Answer & Explanation Answer: A) Concave

Explanation:

Concave type of glasses are used in the headlights of the vehicles as the light from the bulb which is at focus will converges out and spreads and reflects back parallely.

What_type_of_mirror_is_used_in_car_headlights1535545831.jpg image

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6 3794

Q:

Two devices are in network if

A) a process is running on both devices	B) PIDs of the processes running of different devices are same
C) a process in one device is able to exchange information with a process in another device	D) All of the above

Answer & Explanation Answer: C) a process in one device is able to exchange information with a process in another device

Explanation:

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Filed Under: Computer
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