Exams


Q:

The bonds in the compound MgSO4 can be described as

A) covalent B) ionic
C) both A & B D) None of the above
 
Answer & Explanation Answer: C) both A & B

Explanation:

Here the given compound is MgSO4.

In the given compound, Sulphur (S) and Oxygen (O) are two non metals and Magnesium (Mg) is a metal.

In this compound, Sulphur and Oxygen reacts to form covalent bond and the metal Magnesium reacts with both non metals Sulphur and Oxygen to form ionic bonds.

 

Hence, in the given compound MgSO4 there are both covalent and ionic bonds.

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Filed Under: Chemistry
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1 6819
Q:

A sum of Rs.1890 has to be used to give 9 prizes to the customers of a super market for their overall academic purchases. If each prize is Rs.30 less than its preceding price, what is the least value of the price ?

A) 90 B) 95
C) 85 D) 80
 
Answer & Explanation Answer: A) 90

Explanation:

Let the least value of the prize = Rs. x

Then the next value of the prize is x+30 , x+60, x+90, ....x+240.

Given total amount of cash prizes = Rs.1890

--> x + (x+30) + (x+60) + (x+90) + ....+ (x+240) = 1890

--> 9x + (30 + 60 + 90 + 120 + 150 + 180 + 210 + 240) = 1890

--> 9x + 30(1 + 2 + 3 + 4....+ 8) = 1890

--> 9x + 30(36) = 1890

--> 9x = 810 --> x=90

Hence the least value of the prize x=90

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29 6814
Q:

A train is moving and crossing a man who is running on a  platform of 100 m at a speed of 8 kmph in the direction of the train, in 9 sec. If the speed of the train is 74 kmph. Find the length of the train ?

A) 202 mts B) 188 mts
C) 165 mts D) 156 mts
 
Answer & Explanation Answer: C) 165 mts

Explanation:

Let the length of the train = L mts

Relative speed of train and man = 74 - 8 = 66 kmph = 66 x 5/18 m/s

=> 66 x 5/18 = L/9

=> L = 165 mts.

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Filed Under: Problems on Trains
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22 6809
Q:

Solve this logical Math puzzle?

logical_thinking_puzzle1536132282.jpg image

Answer

Let that something be 'x'


From the given data,


x + x/5 = 21


5x + x/5 = 21


6x = 21 x 5


=> x = 17.5


 


Hence, that something is x = 17.5.

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9 6809
Q:

Which state government has inaugurated the upgraded version of police helpline Namma 100, where police officials will be deputed within 15 minutes to the spot of emergency  ?

A) Karnataka B) Telangana
C) Tamil Nadu D) Madhya Pradesh
 
Answer & Explanation Answer: A) Karnataka

Explanation:

Karnataka CM Siddaramaiah has inaugurated the upgraded version of police helpline Namma 100, where police officials will be deputed within 15 minutes to the spot of emergency, for Bengaluru. Based on the model adapted in London, which has helpline 999, and USA, where 911 helpline operates, Namma 100 helpline allows the public to access several facilities on a single number.

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Filed Under: General Awareness
Exam Prep: Bank Exams

11 6803
Q:

Assertive sentences examples list.

Answer

An assertive sentence is a sentence that state, assert, or declare something. It means it is a simple statement making thing. As it declares something, is also called as Declarative sentence.


 


 


 


Examples of assertive sentence or statements ::


 


1. Anamika loves him very much.


 


2. He picks her daily.


 


3. Attitude is everything.


 


4. The sun sets in the west.


 


5. She likes roses.


 


6. He is a student.


 


7. Karthik planned a tour.


 


8. Peacock is a beautiful bird.


 


9. India is our country.


 


10. Joel want to be a doctor.

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Subject: Alphabet Test Exam Prep: TOEFL , GRE , GATE , CAT , Bank Exams , AIEEE
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32 6800
Q:

How much does a clock lose per day, if its hands coincide ever 65 minutes ?

A) 1440/143 min B) 184/13 min
C) 1425/18 min D) 541/9 min
 
Answer & Explanation Answer: C) 1425/18 min

Explanation:

55 min. spaces are covered in 60 min.
60 min. spaces are covered in ((60/55) x 60) min = 720/11 min.
Loss in 65 min. = (720/11 - 65 ) = 5/11
Loss in 24 hrs = (5/11 x 1/65 x 24 x 60)min = 1440/143 min.

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21 6799
Q:

Old name of Mahabharata?

A) Jai Samhitha B) Vrahat Katha
C) Rajatarangini D) Saritsagar Katha
 
Answer & Explanation Answer: A) Jai Samhitha

Explanation:

How the name changed has so many stories. One of them is

In the beginning, Mahabharata has 8800 Slokas and after that it reached to 24000 Slokas. And then it was named as The Great Bharata i.e, Mahabharata.

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Filed Under: Indian History
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24 6799