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Q:

Who is the founder and also first Chairman of the ISRO, it was established in 1969?

A) Vikram Sarabhai B) A P J Abdul Kalam
C) Homi J Bhabha D) Satish Dhawan
 
Answer & Explanation Answer: A) Vikram Sarabhai

Explanation:

The founder and also first Chairman of the ISRO is Vikram Sarabhai.

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Filed Under: General Awareness
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Q:

Rishi bought 30 kg of sugar at the rate of Rs. 9 per kg and 45 kg of sugar at the rate of Rs. 10 per kg. He mixed both type of sugar and sold the mixture at the rate of Rs. 9.75 per kg. What was his gain or loss in the selling of whole sugar?

A) Rs. 10.75 B) Rs. 11.25
C) Rs. 12 D) Rs. 13.50
 
Answer & Explanation Answer: B) Rs. 11.25

Explanation:

Total quantity of sugar = 45 + 30 = 75

Gain or loss can be calculated as

9.75 x 75 - (30 x 9 + 45 x 10)

= 731.25 - 720

= 11.25

 

Hence, in the overall transaction, Rishi got Rs. 11.25 gain.

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Filed Under: Profit and Loss
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Q:

Find the least common multiple of 15 and 12?

A) 3 B) 12
C) 30 D) 60
 
Answer & Explanation Answer: D) 60

Explanation:

The least common multiple of 12 and 15 is

12 = 2 x 2 x 3

15 = 3 x 5

 

LCM of 12 and 15 is  2 x 2 x 3 x 5 = 60.

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Filed Under: HCF and LCM
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Q:

The complexity and variety of organic molecules is due to

A) their interaction with water B) their tremendously large sizes
C) the chemical versatility of carbon atoms D) the variety of rare elements in organic molecules
 
Answer & Explanation Answer: C) the chemical versatility of carbon atoms

Explanation:

The complexity and variety of organic molecules is due to the chemical versatility of carbon atoms.

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Filed Under: Chemistry
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Q:

Standard deviation measures which type of risk?

A) Non diversifiable B) Economic
C) Systematic D) Total
 
Answer & Explanation Answer: D) Total

Explanation:

Standard deviation measures total risk in stocks.

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Filed Under: Accounts Payable
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Q:

In a test, 14% of the students failed in Maths and 22% failed in Hindi. If 18% of the students failed in both the subjects, then the percentage of students who passed in both the subjects is

A) 46 B) 44
C) 42 D) 40
 
Answer & Explanation Answer: A) 46

Explanation:

Let the number of students = 100

Number of students who failed in one or more subjects = 14 + 22 + 18 = 54%

The percentage of students who passed in both the subjects = 100 - 54 = 46%.

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Filed Under: Percentage
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Q:

Verification of a login name and password is known as

A) Trouble shooting B) Logging in
C) Configuration D) Authentication
 
Answer & Explanation Answer: D) Authentication

Explanation:

Verification of a login name and password is known as Authentication.

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Filed Under: Computer
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Q:

Short term side effects of alcohol and other drugs include

A) Temporary blindness B) Disrupted sleep
C) Forgetfulness D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Short term side effects of alcohol and other drugs include forgetfulness, temporary blindness and disrupted sleep.

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Filed Under: General Science
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