CAPF (AC) 2023 (Paper-1) (Questions 51-100)

∴ a, b and c are three distinct natural numbers such that a + b + c = abc.

Leta a = 1, b = 2, c = 3

1 + 2 + 3 = 1 × 2 × 3

6 = 6

1. The arithmetic mean of a, b and c is = (a+b+c)/3

⇒ (1+2+3)/3 ⇒ 6/3 = 2

'2' is a natural number.

2. The harmonic mean of a, b and c is ⇒ [(1+1+1) ÷ (1/a + 1/b + 1/c)]

⇒ (3abc) ÷ (bc+ab+ac) ⇒ (3×1×2×3) ÷ (6+3+2 )

⇒ 18 / 11 ; 1 < 18 / 11 > 2

Both the statements are correct.

Let the ones, tens and hundreds digits of a number are a, b, and c.

Number = 100c + 10b + a

The number obtained by reversing the digits ⇒ 100a + 10b + c

difference between the numbers = 396

100c + 10b + a - (100a + 10b + c) = 396

99c - 99a = 396

c - a = 4

The numbers which has 4 as a difference between the hundreds and ones digit.

'40' three - digit numbers are possible such that the difference between the original number and the number obtained by reversing the digits is 396 and no digit is repeated.

Population ageing is the process by which the share of the older population becomes proportionally larger. This is a new phenomenon of the twentieth century.

In most of the developed countries of the world, population in higher age groups has increased due to increased life expectancy. With a reduction in birth rates, the proportion of children in the population has declined.

Action for Climate Empowerment (ACE) is a term adopted by the UN Framework Convention on Climate Change to denote work under Article 6 of the Convention and Article 12 of the Paris Agreement.

• ACE is based on Article 6 of the United Nations Framework Convention on Climate Change (UNFCCC) and Article 12 of the Paris Agreement, and thus, they underscore the necessity of society involvement in climate action.
• ACE has six pillars, namely: Education, Training, Public Awareness, Public Participation, Access to Information, and International Cooperation.
• ACE is compatible with the Sustainable Development Goals, especially SDG 13 (Climate Action) and SDG 4 (Quality Education), which makes it even more important in terms of development.
• ACE has been institutionalised in curriculum and policy in national approaches (e.g., Costa Rica and the Dominican Republic).
• The youth and civil society are important in the implementation of ACE by advocacy, innovations, and the mobilization of the grassroots.
• Some problems with ACE are the lack of funding, the siloing of institutions, the lack of public awareness, and poor monitoring channels.
• Some of the Opportunities lie in Digital tools, international collaboration, and the Glasgow Work Programme on ACE (2021-2024).
• ACE advocates for climate justice by enhancing governance, which is inclusive and participatory, and empowering marginalized communities.

The Climate Neutral Now Initiative encourages and supports organizations to act now in order to achieve a climate neutral world by 2050, as enshrined in the Paris Agreement. It is a tool to promote additional voluntary action on climate and to provide recognition for it.

• The UNFCCC secretariat launched its Climate Neutral Now initiative in 2015.
• ltis aninitiative launched to urge individuals, companies, and governments to measure their climate footprint, reduce their greenhouse gas emissions as much as possible.
• The secretariat in 2016 launched a new pillar under its Momentum for Change initiative focused on Climate Neutral Now, as part of larger efforts to showcase successful climate action around the world.

Climate neutrality is a three-step process, which requires individuals, companies, and governments to:

• Measure their climate footprint;
• Reduce their emissions as much as possible;
• Offset what they cannot reduce with UN certified emission reductions.

KAVACH-2023 is a national level hackathon that was launched to find innovative ideas and technological solutions to address the cyber security challenges. It is being organized by the Union Education Ministry's Innovation Cell, All India Council for Technical Education (AICTE), Bureau of Police Research and Development (BPR&D, MHA) and Indian Cyber Crime Coordination Centre (I4C, MHA).

The Neolithic Period, also known as the 'New Stone Age,' is characterized by ground and polished stone tools, agriculture, animal domestication, and pottery. These developments did not occur uniformly across different regions; instead, they emerged at different times and spread gradually

• The Neolithic period was characterisedby a cultural revolution. Man progressed from being a seeker of the natural world to its master.
• Tools from this period required more time to complete and were more durable. In addition to stone tools, the people brought ceramics, which served a variety of functions.
• Although they continued to use earlier tools, prehistoric people used pecking, grinding, and polishing to fashion tools from various types of igneous rocks during this period in order to adapt to their environment.
• The surface of a wet sandstone was used as an abrasive. The tools thus made were more durable and one took a longer time to make them.
• Thus, mostly the Neolithic industry is referred to as the pecked and groundstone tool industry.

The Ochre Coloured Pottery culture is a Bronze Age culture of the Indo-Gangetic Plain "generally dated 2000-1500 BCE,". Northern Black Polished Ware (NBPW) was popular during the previous and early Mauryan eras.

Black and Red Ware (BRW) it is associated with the Neolithic phase, Harappa, Bronze Age India, Iron Age India, the megalithic and the early historical period. Painted Grey-Ware (PGW) culture is an Iron Age Indo-Aryan culture of the western Gangetic plain and the Ghaggar-Hakra valley in the Indian subcontinent.

There were fiv e major political centres in the empire the capital Pataliputra and the provincial centres of Taxila, Ujjayini, Tosali and Suvarnagiri, all mentioned in Asokan inscriptions.

Ashoka's inscriptions reflect notable features, including linguistic diversity and regional script variations. Primarily composed in Prakrit and inscribed using the Brahmi script in central and eastern India, these inscriptions adapted to the linguistic needs of different regions.

In the northwestern parts of the empire, they appeared in the Aramaic language and Kharoshthi script, while in Afghanistan, they were written in both Aramaic and Greek scripts and languages.
This adaptation underscores Ashoka's effort to effectively communicate his policies across his vast and culturally diverse empire.

The first coins to bear the names and images of rulers were issued by the Indo-Greeks, who established control over the north-western part of the subcontinent c. second century BCE. The kushanas, however, issued the largest hoards of gold coins first gold coins c. first century CE.

These were virtually identical in weight with those issued by contemporary Roman emperors and the Parthian rulers of Iran, and have been found from several sites in north India and Central Asia. The widespread use of gold coins indicates the enormous value of the transactions that were taking place.