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Q:

Which one among the following states has the highest density of population

A) Bihar B) Kerala
C) Punjab D) Uttar Pradesh
 
Answer & Explanation Answer: A) Bihar

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Filed Under: Indian Economy

Q:

Which one of the following states of India records the highest sex ratio

A) Kerala B) Karnataka
C) Meghalaya D) Tamil Nadu
 
Answer & Explanation Answer: A) Kerala

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Filed Under: Indian Economy

Q:

Which one of the following is NOT a characteristic of the population of a developed country

A) Low birth rate and low death rate B) High birth and high death rate
C) high proportion of urban population D) low growth rate of population
 
Answer & Explanation Answer: B) High birth and high death rate

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Filed Under: Indian Economy

Q:

In the history of Indian population, Which duration period is referred to as ' a great leap forward '

A) 1921 - 1931 B) 1941 - 1951
C) 1951 - 1961 D) 1971 - 1981
 
Answer & Explanation Answer: C) 1951 - 1961

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Filed Under: Indian Economy

Q:

Which State of India has the largest area

A) Uttar Pradesh B) Madhya Pradesh
C) Maharashtra D) Rajasthan
 
Answer & Explanation Answer: D) Rajasthan

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Filed Under: Indian Economy

Q:

The most literate Union Territory in India is

A) Delhi B) Lakshadweep
C) Chandigarh D) Pondicherry
 
Answer & Explanation Answer: B) Lakshadweep

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Filed Under: Indian Economy

Q:

x and y are integers

x + y < 11 , and x > 6

What is the smallest possible value of x - y ?

A) 1 B) 24
C) 4 D) -2
 
Answer & Explanation Answer: C) 4

Explanation:

The smallest value will be obtained by giving x the smallest possible value while y gets the largest possible value. The smallest value for x = 7. This means that y will have to be less than or equal to 3 (so that x + y <11), but we want the largest value of y which is 3.

The difference, x - y will be 4.

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Filed Under: Problems on Numbers
Exam Prep: GRE

Q:

A train covers a distance in 50 minutes, if it runs at a speed of 48kmph on an average. Find the speed at which the train must run to reduce the time of journey to 40 minutes.

A) 50 km/hr B) 60 km/hr
C) 65 km/hr D) 70 km/hr
 
Answer & Explanation Answer: B) 60 km/hr

Explanation:

We are having time and speed given, so first we will calculate the distance. Then we can get new speed for given time and distance.
Lets solve it.

Time = 50/60 hr = 5/6 hr
Speed = 48 mph
Distance = S*T = 48 * 5/6 = 40 km

New time will be 40 minutes so,
Time = 40/60 hr = 2/3 hr
Now we know,
Speed = Distance/Time
New speed = 40*3/2 kmph = 60kmph

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Filed Under: Time and Distance
Exam Prep: GRE