Questions

Q:

A doctor and a bus driver are both in love with the same woman, named Sana. The bus driver had to go on a long bus trip that would last a week. Before he left, he gave Sana seven apples.

 Why?

Answer

We know a proverb that An apple a day keeps the doctor away. To keep the doctor away from her, he gave seven apples, each apple a day.

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Q:

The speed of a boat when travelling downstream is 32 km/h, whereas when travelling upstream it is 28 km/h. What is the speed of the boat in still water?

A) 27 km/h B) 29 km/h
C) 31 km/h D) Cannot be determined
 
Answer & Explanation Answer:

Explanation:

Ans.  Suppose the speed of boat in still water is x km/h and speed of stream is y km/h

Speedof boat in downstream = (x + y) km/h x+ y = 32 …(i) 

Speed of boat in upstream = (x – y) km/h

x – y = 28 …(ii)

Add. Eqs. (i) and (ii), we get 2x = 60

x = 30 km/h

 

 

 

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Q:

Which of the following causes adiabatic temperature changes in atmosphere?

A) Deflection and advection B) Latent heat of condensation
C) Expansion and compression of the air D) Partial absorption of solar radiation by the atmosphere
 
Answer & Explanation Answer: C) Expansion and compression of the air

Explanation:

Application of temperature changes in the atmosphere is in adiabatics, or temperature change which are caused by compressing or allowing air to expand.

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Filed Under: Physics
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Q:

4 years ago, the respective ratio between 1/2 of A’s age at that time and four times of B’s age at that time was 5 : 12. Eight years hence 1/2 of A’s age at that time will be less than B’s age at that time by 2 years. What is B’s present age ?

A) 10 years B) 12 years
C) 14 years D) 8 years
 
Answer & Explanation Answer: A) 10 years

Explanation:
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Q:

Who is the the author and composer of the National Anthem (Jana Gana Mana) of India?

A) Rabindranath Tagore B) Bankim Chandra Chatterjee
C) Muhammad Iqbal D) Ram Singh Thakur
 
Answer & Explanation Answer: A) Rabindranath Tagore

Explanation:
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Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives and click the button corresponding to it.

It's nothing short of a revolution in how we eat, and it's getting closer every day. Yes, a lot of people are obese, and yes, the definition of "healthy eating" seems to change all the time. But in labs and research centres around the world, scientists are racing to match our genes and our taste buds, creating the perfect diet for each of us, a diet that will fight disease, increase longevity, boost physical and mental performance, and taste great to boot. As food scientist J.Bruce German says, "The foods we like the most will be the most healthy for us."

Is that going to be a great day, or what?

All this will come to pass, thanks to genomics, the science that maps and describes an individual's genetic code. In the future, personalized DNA chips will allow us to assess our own inherited predispositions for certain diseases, then adjust our diets accordingly. So, if you're at risk for heart disease, you won't just go on a generic low-fat diet. You'll eat foods with just the right amount and type of fat that's best for you. You'll even be able to track your metabolism day-to-day to determine what foods you should eat at any given time, for any given activity. "Since people differ in their genetics and metabolism, one diet won't fit all," says German. As complex as all this sounds, it could turn out to be relatively simple.

What will be possible in the future?

A) Personalised DNA chips for people to assess their own inherited predispositions B) You are at great risk for heart disease
C) You will not be able to determine what food you should eat D) You will be unable to adjust your diet
 
Answer & Explanation Answer: A) Personalised DNA chips for people to assess their own inherited predispositions

Explanation:
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Q:

Shillong is a hill station in northeast India and is capital of which state?

A) Sikkim B) Manipur
C) Tripura D) Meghalaya
 
Answer & Explanation Answer: D) Meghalaya

Explanation:

Shillong is the capital city of Meghalaya state in India. It is well known tourist place as a hill station in northeast India which attracts tourists all over the world.

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Filed Under: Indian Geography
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Q:

Which statement correctly describes the role of chance in evolution?

A) An allele that increases evolutionary fitness cannot be lost from a population by chance events. B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA
C) Evolutionary change proceeds by an accumulation of changes that occur by chance. D) None of the above
 
Answer & Explanation Answer: B) The ultimate source of new alleles is mutation, random changes in the nucleotide sequences of an organism's DNA

Explanation:
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