The ratio of copper to silver is 3:7, meaning there are 3 parts copper and 7 parts silver, totaling 10 parts. The fraction of silver is 7/10. To find the percentage, multiply by 100%, which gives 70%. Options A and C are incorrect percentages.
To determine the total quantity of mixture required, we need to understand that the 69 kg of copper represents 12% of the total mixture. Let 'X' be the total mass of the mixture in kg. The problem can be set up as a simple percentage equation: 12% of X = 69 kg.
To solve for X, we convert the percentage to a decimal: 0.12. So, the equation becomes 0.12 * X = 69. Dividing both sides by 0.12 gives us X = 69 / 0.12. Performing this calculation, X = 575 kg. Therefore, 575 kg of the mixture is required to obtain 69 kg of copper. Options (A) 424 kg and (C) 828 kg are incorrect as they do not satisfy the given percentage relationship, likely resulting from miscalculations or incorrect application of the percentage concept.
The correct mean is calculated by adjusting the total sum for the wrongly recorded items and then dividing by the total number of items.
To factorize the expression y^2 + y – 6, we need to find two numbers whose product is -6 and whose sum is 1 (the coefficient of the middle term).
These numbers are 3 and -2, so we can write:
y^2 + y – 6 = (y + 3)(y – 2)
The correct answer is (A) 57%. To determine the percentage of total votes the winning candidate received, we first need to calculate the total number of votes cast. Summing the votes for all three candidates: 1136 + 7636 + 11628 = 20400 votes. The winning candidate is the one with the highest number of votes, which is 11628. To find the percentage, we divide the winning candidate's votes by the total votes and multiply by 100: (11628 / 20400) * 100 = 0.57 * 100 = 57%. Options like 60% or 76.4% are incorrect as they do not reflect the actual vote distribution based on the given numbers. This calculation demonstrates the clear majority obtained by the leading candidate in this election.
Jacinda Ardern served as the 40th Prime Minister of New Zealand. Eva Lawler is an Australian politician, and Julia Gillard was Australia's 27th Prime Minister, making options A and C incorrect.
China officially joined the World Trade Organization on December 11, 2001, after a lengthy negotiation process. Malaysia and France were already members before this date, making them incorrect options.
A) Tajikistan
(B) Algerian
(C) Sudanese
(D) None of these
The correct answer is (B) Algerian
The Algerian civil war (1992-2002) is also known as the Black Decade.
It was a period of intense violence.
It was conflict between the government and Islamist insurgents (11 January 1992 to 8 February 2002)
The Rose Revolution was a peaceful protest in Georgia in November 2003, leading to the resignation of Eduard Shevardnadze. Belarus and Romania experienced different political events, not the Rose Revolution.
The Tulip Revolution, also known as the First Kyrgyz Revolution, occurred in Kyrgyzstan in March 2005, overthrowing President Askar Akayev. Turkmenistan and Latvia did not experience this specific revolution.
The Orange Revolution was a series of protests in Ukraine from November 2004 to January 2005, following alleged fraud in the presidential election. Moldova and Lithuania experienced different political events.
The War in Darfur, also known as the Land Cruiser War, was a major armed conflict that began in February 2003 in Sudan. Afghanistan and Ghana are incorrect as the conflict did not take place in these countries.
Cyclonic storm Nargis caused the worst national disaster in the history of Myanmar in 2008. Malaysia and Thailand are incorrect as they were not the primary countries affected by this catastrophic event.
Barack Obama was elected the first African American president of the United States in 2008. The years 2007 and 2005 are incorrect as his election occurred later than those dates.
The Deepwater Horizon oil spill, the largest marine oil spill in petroleum industry history, occurred in the Gulf of Mexico. The Persian Gulf and Gulf of Aden are incorrect locations for this specific disaster.
The Danyang-Kunshan Grand Bridge in China is recognized as the longest bridge in the world. The Sydney Harbour Bridge and Brooklyn Bridge are significantly shorter, making them incorrect options.
Nelson Mandela was a pivotal figure in the anti-apartheid movement. After spending 27 years in prison, he was released and played a crucial role in negotiating the end of apartheid in South Africa. He was subsequently elected as the first democratically elected President of South Africa, serving from 1994 to 1999. While the question states 1991-1999, his presidency of South Africa is the key fact. His leadership marked a historic transition from apartheid to a multiracial democracy, earning him global recognition as a symbol of peace and reconciliation. Angola and Mauritania are incorrect as they are distinct African nations with their own political histories and leaders, unrelated to Mandela's presidency. This choice highlights his monumental legacy in establishing a non-racial democracy.
The 'March of Suffering' (often translated as Arduous March or "Gochonan Haenggun" in Korean) refers to the devastating famine that struck North Korea in the mid-1990s. This period, roughly from 1994 to 1998, was characterized by widespread starvation, economic collapse, and a severe food crisis, leading to the deaths of hundreds of thousands, possibly millions, of North Koreans. The famine was exacerbated by a combination of factors including natural disasters, the collapse of the Soviet Union (which had provided aid), and the mismanagement of the country's centrally planned economy. Sudan has experienced severe famines, particularly in the 1980s and early 2000s, but they are not known by this specific moniker. Guatemala has also faced food insecurity but not a famine referred to as the 'March of Suffering'. Therefore, North Korea is the correct answer, representing a tragic chapter in its history.
The Euro was officially introduced as an accounting currency in financial markets on January 1st, 1999, marking a significant step in European economic integration.
The correct answer option is 1) 4.
(A) 50
(B) 20
(C) 30
(D) None of these
The Algerian War of Independence (1954-1962) was fought between France, the colonial power, and the Algerian National Liberation Front (FLN). This conflict led to Algeria's independence. The UK and Belgium were not direct parties to this specific war, making them incorrect distractors.
The correct answer is 10. The Association of Southeast Asian Nations (ASEAN) is a political and economic union of 10 member states in Southeast Asia: Brunei, Cambodia, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam.
Therefore, ASEAN is a union of 10 member states.