Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
Latest News & Updates
IAS Site Latest Articles
Indian Polity by M. Laxmikanth for UPSC Preparation
Indian Polity by M. Laxmikanth is one of the most popular ad comprehensive books to study for the civil service examination. Polity is an eminent and important segment of the General Studies in the civil service exam, which includes topics ...
A person travels from X to Y at a speed of 40 kmph and returns by increasing his speed 50%. What is his average speed for both the trips?
Let the distance from X to Y = x km Speed towards from X to Y = 40 kmph Time taken = (x/40) Returing spreed from Y to X = 40+(50% of 40) = 40+20 = 60 kmph Time taken in journey = (x/60) Average speed for whole journey = Total Distance/Total time Total Distance = 2x Total time = (x/40+x/60) Average sRead more
Let the distance from X to Y = x km
Speed towards from X to Y = 40 kmph
Time taken = (x/40)
Returing spreed from Y to X = 40+(50% of 40) = 40+20 = 60 kmph
Time taken in journey = (x/60)
Average speed for whole journey = Total Distance/Total time
Total Distance = 2x
Total time = (x/40+x/60)
Average speed = 2x/(x/40+x/60) = 4800/100 = 48 kmph
See lessOn buying a pen, the shopkeeper gives three refills free. On buying a pen and six refills, the shopkeeper gives additional four refills free. If the equivalent discount is the same in both cases, then how many refills will be equal in value to a pen?
Ist case: Buy a pen = 3 free refills 2nd case: Buy a pen + 6 refills = 4 free refills The extra 6 refills bought in the 2nd case give 1 additional free refill. Therefore, the 1 extra free refill is worth 1/6 of what paid for. If the equivalent discount is the same in both cases 3 free refills = 1/6Read more
Ist case: Buy a pen = 3 free refills
2nd case: Buy a pen + 6 refills = 4 free refills
The extra 6 refills bought in the 2nd case give 1 additional free refill.
Therefore, the 1 extra free refill is worth 1/6 of what paid for.
If the equivalent discount is the same in both cases
3 free refills = 1/6 of the price of a pen,
3 x 6 = the price of a pen.
18 refills = the price of the pen
Ans (b) 18.
See lessWhich one of the following is an artificial lake?
Kodaikanal (Tamil Nadu): Artificial Lake. Kolleru Lake (Andhra Pradesh): Largest freshwater lake in India between the Deltas of Krishna and Godavari rivers.
Kodaikanal (Tamil Nadu): Artificial Lake.
Kolleru Lake (Andhra Pradesh): Largest freshwater lake in India between the Deltas of Krishna and Godavari rivers.
See lessThe Ninth Schedule to the Indian Constitution was added by which amendment?
The First Constitutional Amendment Act of 1951 incorporated the Ninth Schedule into the Indian Constitution. Source: https://www.iassite.com/important-amendments-in-indian-constitution-upsc/
The First Constitutional Amendment Act of 1951 incorporated the Ninth Schedule into the Indian Constitution.
Source: https://www.iassite.com/important-amendments-in-indian-constitution-upsc/
See lessWhich of the following statements is not correct about the Hepatitis viruses?
Ans (b): Hepatitis means inflammation of the liver. Hepatitis is a viral disease which damages the liver. Hepatitis B virus is much similar to HIV in transmission. There are vaccines to prevent Hepatitis B. However, there is no vaccine for Hepatitis C.
Ans (b): Hepatitis means inflammation of the liver. Hepatitis is a viral disease which damages the liver. Hepatitis B virus is much similar to HIV in transmission. There are vaccines to prevent Hepatitis B. However, there is no vaccine for Hepatitis C.
See lessVardhamana Mahavira at the age of 28 began his quest for truth and practised for 12 years, and at the end of austerities, he was known as:
Vardhaman Mahavira left his home and adopted the ascetic life when he was 30 years old. For the next 12 years, he wandered, meditated and practised severe austerities before attaining enlightenment. At the age of 42 years, he attained “Kaivalya”, i.e., the supreme knowledge and final deliverance froRead more
Vardhaman Mahavira left his home and adopted the ascetic life when he was 30 years old. For the next 12 years, he wandered, meditated and practised severe austerities before attaining enlightenment. At the age of 42 years, he attained “Kaivalya”, i.e., the supreme knowledge and final deliverance from the bonds of pleasure. Hence, he was known as Kaivalya (or Kevalin).
See lessIndian Remote Sensing (IRS) satellites
Indian Remote Sensing satellite is used for various applications such as studying the national economy in areas of agriculture, marine fisheries and coastal management, water resources, forestry, ecology, geology, and watersheds. IRS satellite is not applied in telecommunications or traffic studies,Read more
Indian Remote Sensing satellite is used for various applications such as studying the national economy in areas of agriculture, marine fisheries and coastal management, water resources, forestry, ecology, geology, and watersheds. IRS satellite is not applied in telecommunications or traffic studies, as for these purposes, the Geo-stationary satellite is used.
See lessWhich committee was appointed by the British Government to report on the development of education in India ?
Hartog committee was appointed in 1929 by the British Government to report on the development of education in India. (https://www.iassite.com/development-of-education-in-india-upsc/#Hartog_Committee_1929)
Hartog committee was appointed in 1929 by the British Government to report on the development of education in India.
See less(https://www.iassite.com/development-of-education-in-india-upsc/#Hartog_Committee_1929)
The term ‘Aryan’ denotes:
Aryan is a linguistic term indicating a speech group of Indo-European origin. 'Aryan' name was originally given to people who were said to speak an archaic Indo-European language and who were thought to have settled in prehistoric times in ancient Iran and the northern Indian subcontinent. Aryan isRead more
Aryan is a linguistic term indicating a speech group of Indo-European origin.
See less‘Aryan’ name was originally given to people who were said to speak an archaic Indo-European language and who were thought to have settled in prehistoric times in ancient Iran and the northern Indian subcontinent.
Aryan is not an ethnic term.
The term ‘Intended Nationally Determined Contributions’ is related to?
Ans: (c) ‘Intended Nationally Determined Contributions’ is related to the Plan of action outlined by the countries of the world to combat climate change.
Ans: (c) ‘Intended Nationally Determined Contributions’ is related to the Plan of action outlined by the countries of the world to combat climate change.
See less