Question Discussion & Solution

The correct answer is Bundi, Udaipur, Pratapgarh and Banswara

• The correct location of the districts from north to south direction in Rajasthan is Banswara, Pratapgarh, Udaipur and Bundi.

Key Points

Additional Information

• Banswara:
  • Banswara is known as the Cherrapunji of Rajasthan.
  • It is also known as ‘City of Hundred Islands.
  • The state of Banswara was established by Jagmal Singh.
  • It shares a border with Pratapgarh, Dungarpur districts, Madhya Pradesh and Gujarat.
• Pratapgarh:
  • Maharana Kumbha was the ruler of Mewar with capital at Chittorgarh.
  • The district is surrounded by Udaipur, Banswara, Chittorgarh, Ratlam, Mandsaur and Neemuch districts of Madhya Pradesh.
• Udaipur:
  • It is sometimes referred ‘Venice of the East.
  • It is bordered by Rajsamand, Chittorgarh & Pratapgarh, Banswara, Dungarpur, Sirohi and Pali.
• Bundi:
  • The district derived its name from a former Meena tribe chief called Bunda Meena. 
  • The district is bordered by Tonk, Sawai-Madhopur, Kota, Chittorgarh, and Bhilwara.

Option 1 is the correct answer: Local Area Network (LAN) has the highest transmission speed.

The correct answer is Payal Jangid.

• Payal Jangid has been awarded the 'Changemaker Award' by the Bill and Melinda Gates Foundation for the year 2019.

Key Points

• Bill and Melinda Gates Foundation:
  • Founded by Bill Gates and his wife Melinda Gates this organization help people lead healthy, productive lives.
  • In developing countries, the organization focuses on improving people's health and providing them with the chance to lift themselves out of hunger and extreme poverty.
  • Its headquarters is in Washington, USA.
  • Payal Jangid was awarded the 'Changemaker Award'  at Goalkeepers Global Goals Awards 2019.
    • She was awarded for her work towards the abolition of child marriage in her village.
  • Her mentors were Nobel Peace Laureate Kailash Satyarthi and child rights activist Sumedha Kailash.
  • Prime Minister Narendra Modi was honoured with the Global Goalkeeper award of 2019.

Additional Information

• Apurvi Singh Chandela is a shooting player and competes in 10m rifle events.

The correct answer is Barium.

Key Points

• Metal salts commonly used in firework displays include calcium chloride, sodium nitrate, barium chloride, copper chloride, etc.
• The green flame produced in fireworks is due to the presence of Barium.
• The blue flame is due to the presence of Copper.
• The orange flame is due to the presence of Calcium.
• A yellow flame is due to the presence of Sodium.
• Lithium is used to impart a red colour to fireworks.

Additional Information

• Barium (Ba):
  • The atomic number is 56.
  • It is mostly used in drilling fluids for oil and gas wells and also used in paints and glassmaking.
  • It is found in combination with other elements.
  • Barite is one of the major ores of Barium.
• Calcium (Ca):
  • The atomic number is 20.
  • Calcium provides strength to bones and teeth along with vitamins.
  • It also plays an important role in blood formation, muscle contraction, clotting of blood, etc.
  • Milk, eggs, fish, etc. are the main sources of calcium.
• Lithium (Li):
  • Atomic Number is 3.
  • Lithium is the lightest metal on the periodic table.
  • It is widely used in rechargeable batteries for mobile phones, laptops, digital cameras, etc.
• Chromium (Cr):
  • The atomic number is 24.
  • It is used in manufacturing stainless steel.
  • Chromite is the major ore of Chromium.
  • It is a blue-white hard, brittle, and very corrosion-resistant metal and is used to produce several alloys.

The given equation is 

(10 N 5) L (4 N 4) M 6

Convert the above equation into a mathematical form.

(10 × 5) + (4 × 4) - 6

Now, solve the equation using the 'BODMAS' rule.

The 'BODMAS' rule is

Therefore, the equation becomes

⇒ 50 + 16 - 6

⇒ 60

Hence, the correct answer is 60.