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The logic followed here is :-

Third number = First number + Second number + Second number.

• 1 + 4 = 9 → 1 + 4 + 4 = 9
• 2 + 8 = 18 → 2 + 8 + 8 = 18
• 3 + 6 = 15 → 3 + 6 + 6 = 15
• 7 + 8 = ? → 7 + 8 + 8 = 23

Hence, the correct answer is "23".

The correct answer is Kandala.

Key Points

• First Free Trade Zone (FTZ) in India – Kandla Port, now known as Deendayal Port, was the first in India to be designated as a Free Trade Zone, promoting duty-free trade and economic activities.
• Tax-Free Seaport – Businesses operating within the FTZ at Kandla enjoy exemptions on customs duties, excise, and other taxes, making it a crucial hub for import-export trade.
• Strategic Trade Location – Situated on the Gulf of Kutch, Gujarat, Kandla Port has excellent connectivity to major international trade routes, handling diverse cargo efficiently.
• Boost to International Trade – By offering tax benefits and trade incentives, Kandla Port has significantly contributed to India's foreign trade, industrial growth, and economic development.

Additional Information

• Mumbai Port has long served as the main entry point into India.
• It has been crucial to the growth of the country's economy, trade, and commerce, as well as the wealth of Mumbai city in particular.
• The port has come to this position by working hard to meet the shifting demands of marine traffic.
• Although originally built to handle general cargo.
• The port has evolved over time to accommodate shifting shipping practices and cargo packaging, including break bulk, unitization, palletization, and containerization.

The correct answer is Mathura Refinery.

Key Points

• At its Mathura refinery, India's largest oil company, Indian Oil Corporation (IOC), will construct the country's first "green hydrogen" plant.
• It aspires to get ready for a future that meets the rising demand for oil as well as renewable energy sources.
• The strategic growth plan that the Indian Oil Corporation (IOC) has created aims to keep a laser-like focus on its core fuel marketing and refining activities.
• Over the next ten years, it will also be making greater strides in petrochemicals, hydrogen, and electric transportation.

Important Points

• At any of its upcoming petrochemical and refinery growth projects, the business will not install captive power plants.
• It uses the 250 MW of electricity that renewable energy sources like solar energy produce.

Given:

\( {3 \over 10}^{th}\) of the road is 45 km

Calculation:

Let us consider the length of the road as 150 km.

So,

⇒ \( {3 \over 10}\) × 150 = 45

Then,

⇒ \( {2 \over 5}\) × 150 = 60

∴ The length of the \( {2 \over 5} ^{th}\) of that road is 60 km.

The correct answer is Damascus.

Key Points

• Syria's capital, Damascus, is the oldest capital in existence.
• It is the fourth holiest city in Islam, according to some.
• Damascus was established in the third millennium B.C., making it one of the Middle East's oldest cities.
• Archaeologists have been able to demonstrate through excavation sites that the region was first populated between 8,000 and 10,000 B.C.
• The city is special because so many different civilizations have contributed to its current form.

Important Points

• Urban planning practices from Roman and Greek cities are incorporated here.
• Islam has had a significant impact as well, as may be seen at the Umayyad Mosque.
• It was constructed between A.D. 705 and 715 and is also referred to as the Great Mosque.
• It is one of the biggest and oldest mosques in the world.

The logic followed here is :-

Hence, the correct answer is "ISS".

Explanation:

= (√20 + √1125 - √567) ( √500 + √245 + 9√7)

= ( 2√5 + 15√5 - 9√7 ) ( 10√5 + 7√5 + 9√7)

= (17√5 - 9√7) (17√5 + 9√7)

= (17² × 5 – 9² ×7)

= 1445 – 567

= 878

Ans- 878

Given :- _a_bca_dabba_bac_c_a

By checking options and substituting accordingly.

1) acbdba → a a c b c a b d a b - b a d b a c b c a a

• Here "a a c b c a b d a b" is reversed

2) adcdba → a a d b c a c d a b - b a d b a c b c a a

3) acbdab → a a c b c a b d a b - b a d b a c a c b a

4) acdbba → a a c b c a d d a b - b a b b a c b c a a

Hence, the correct answer is "acbdba".

Given:

A = Rs. 2250

B = Rs. 2700

Ratio = 2 : 1

Calculation:

Let the time B joined the business be 'x'

Let us consider the total months as 12.

⇒ A : B = (2250 × 12) : (2700 × x)

⇒ A : B = 27000 : 2700x

We know that,

⇒ A : B = 2 : 1 ----- (1)

Substitute the value of A : B in equation (1)

⇒ 27000 : 2700x = 2 : 1

⇒ \({27000 \over 2700x} = {2 \over 1}\)

⇒ 27000 = 2 × 2700x

⇒ 27000 = 5400x

⇒ x = 5

So, B remained in business for 5 months.

Then,

B = 12 months - 5 months = 7 months

∴ B joined the business after 7 months.

The correct answer is Methane Hydrate.

Key Points

• Fire Ice is a fossil fuel.
• Its chemical name is methane clathrate, also known as methane hydrate.
• It is a solid compound and is formed by trapping methane in the crystal structure of water.
• Methane hydrates are white ice-like solids.

Additional Information

• Methane hydrates are formed when methane gas comes in contact with water at high pressure and low temperature.
• These occur naturally in subsurface deposits of river basins and oceans.
• These deposits often include small amounts of other hydrocarbon hydrates like ethane hydrate and propane hydrate.
• Methane hydrates are used for the transportation and storage of natural gas.
• They are not used on a large scale because they are difficult to handle.
• Leakage of methane gas can cause serious consequences.