Questions

Q:

If sin 30° + cos 45° = X, then the value of X.

A) (2√2-√3)/2 B) 4/√3
C) (1-√3)/√3 D) (1+√2)/2
 
Answer & Explanation Answer: D) (1+√2)/2

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Q:

Two circles of same radius intersect each other at P and Q. If the length of the common chord is 30 cm and distance between the centres of the two circlesis 40 cm, then what is the radius (in cm) of the circles?

A) 25 B) 26
C) 27 D) 28
 
Answer & Explanation Answer: A) 25

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Q:

Ping-pong Diplomacy is related to which of the following countries?

A) Myanmar B) Japan
C) China D) Taiwan
 
Answer & Explanation Answer: C) China

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Q:

Which country among the following voted in 2015 to be the first country to allow three parent in-vitro fertilization?

 

A) Britain B) USA
C) France D) Italy
 
Answer & Explanation Answer: A) Britain

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Q:

As per Economic survey 2017-18, the percentage contribution of the services sector to India's GDP will be in the range of

A) Between 40-50% B) Greater than 50%
C) Less than 30% D) Between 30-40%
 
Answer & Explanation Answer: B) Greater than 50%

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Q:

Which of the following is the correct description of the term sex-ratio as used in the context of the census of population?

A) Number of males per 1000 females. B) Number of females per 1000 males.
C) Number of females per 100 males. D) Number of females in a sample of 1000 persons.
 
Answer & Explanation Answer: B) Number of females per 1000 males.

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Q:

India has changed over to the decimal system of coinage in___________.

A) April, 1958 B) April, 1959
C) April, 1995 D) April, 1957
 
Answer & Explanation Answer: D) April, 1957

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Q:

By how many atomic mass units do subsequent members of homologous series differ?

A) 26 B) 32
C) 20 D) 14
 
Answer & Explanation Answer: D) 14

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Filed Under: Chemistry
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