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Q. A student won a medal worth $3000. If the medal's value increases by 15% after a year, what will be its new value?

A. $3450
B. $3600
C. $3300
D. $3150

Solution

New value = $3000 + (15/100 * 3000) = $3000 + $450 = $3450.

Correct Answer: A — $3450

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Q. A student won a scholarship of $2500. If he donates 10% of it to charity, how much does he donate?

A. $200
B. $250
C. $300
D. $350

Solution

Amount donated = 10% of 2500 = 0.1 * 2500 = $250.

Correct Answer: B — $250

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Q. A student won an award worth $5000. If he spends 20% of it on books, how much money does he have left?

A. $4000
B. $4500
C. $3500
D. $3000

Solution

Amount spent on books = 20% of 5000 = 0.2 * 5000 = $1000. Amount left = 5000 - 1000 = $4000.

Correct Answer: B — $4500

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Q. A subsidy scheme allocates ₹1,00,000 for 4 projects. If one project receives ₹30,000, what percentage of the total budget does this project consume?

A. 20%
B. 25%
C. 30%
D. 35%

Solution

Percentage consumed = (₹30,000 / ₹1,00,000) * 100 = 30%.

Correct Answer: C — 30%

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Q. A swimmer completes a lap in 30 seconds. How many laps can he complete in 10 minutes? (2021)

A. 20
B. 15
C. 25
D. 30

Solution

10 minutes = 600 seconds. Laps completed = 600 seconds / 30 seconds per lap = 20 laps.

Correct Answer: A — 20

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Q. A swimmer swims 200 meters in 2 minutes. What is his average speed in meters per second? (2021)

A. 1.5 m/s
B. 2 m/s
C. 2.5 m/s
D. 3 m/s

Solution

Average speed = Distance / Time = 200 meters / 120 seconds = 1.67 m/s, which rounds to 2 m/s.

Correct Answer: B — 2 m/s

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Q. A swimmer swims 200 meters in 2 minutes. What is his speed in kilometers per hour? (2021)

A. 6 km/h
B. 5 km/h
C. 4 km/h
D. 3 km/h

Solution

Speed = Distance / Time = 200 meters / 120 seconds = 1.67 m/s. To convert to km/h, multiply by 3.6: 1.67 * 3.6 = 6 km/h.

Correct Answer: A — 6 km/h

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Q. A swimmer swims 200 meters in 2 minutes. What is his speed in meters per second? (2021)

A. 1.5 m/s
B. 2 m/s
C. 2.5 m/s
D. 3 m/s

Solution

Speed = Distance/Time = 200 m / 120 s = 1.67 m/s, which rounds to 2 m/s.

Correct Answer: B — 2 m/s

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Q. A tank can be filled by a pipe in 6 hours and emptied by another pipe in 8 hours. If both pipes are opened together, how long will it take to fill the tank? (2020)

A. 12 hours
B. 24 hours
C. 48 hours
D. 18 hours

Solution

Rate of filling = 1/6 tank/hour, Rate of emptying = 1/8 tank/hour. Combined rate = 1/6 - 1/8 = 1/24 tank/hour. Time = 1 / (1/24) = 24 hours.

Correct Answer: A — 12 hours

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Q. A tank can be filled by two pipes in 12 hours and 15 hours respectively. How long will it take to fill the tank if both pipes are opened together? (2021)

A. 7 hours
B. 8 hours
C. 9 hours
D. 10 hours

Solution

Rate of first pipe = 1/12, Rate of second pipe = 1/15. Combined rate = 1/12 + 1/15 = 1/7.2. Time = 7.2 hours.

Correct Answer: C — 9 hours

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Q. A tank can fire 10 rounds per minute. How many rounds will it fire in 15 minutes? (2022)

A. 100
B. 120
C. 150
D. 180

Solution

Total Rounds = Rate × Time = 10 rounds/min × 15 min = 150 rounds

Correct Answer: C — 150

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Q. A tank can hold 500 liters of water. If it is filled at a rate of 25 liters per minute, how long will it take to fill the tank? (2020)

A. 15 min
B. 20 min
C. 25 min
D. 30 min

Solution

Time = Total Volume / Rate = 500 liters / 25 liters/min = 20 min

Correct Answer: D — 30 min

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Q. A team wins 70% of its matches. If they played 40 matches, how many matches did they win? (2023)

A. 28
B. 30
C. 32
D. 35

Solution

Matches won = 70% of 40 = 0.7 * 40 = 28.

Correct Answer: A — 28

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Q. A tennis player serves at a speed of 180 km/h. How long will it take for the ball to travel 20 meters? (2021)

A. 0.4 seconds
B. 0.5 seconds
C. 0.6 seconds
D. 0.7 seconds

Solution

Speed in m/s = 180 km/h * (1000 m / 1 km) * (1 h / 3600 s) = 50 m/s. Time = distance/speed = 20 m / 50 m/s = 0.4 seconds.

Correct Answer: B — 0.5 seconds

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Q. A tennis player serves at a speed of 180 km/h. What is this speed in meters per second? (2023)

A. 50 m/s
B. 40 m/s
C. 30 m/s
D. 20 m/s

Solution

To convert km/h to m/s, divide by 3.6. So, 180 km/h = 180 / 3.6 = 50 m/s.

Correct Answer: B — 40 m/s

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Q. A tennis player serves the ball at a speed of 180 km/h. How many meters per second is this? (2022)

A. 50
B. 45
C. 60
D. 40

Solution

To convert km/h to m/s, divide by 3.6. 180 km/h ÷ 3.6 = 50 m/s.

Correct Answer: B — 45

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Q. A tennis player serves the ball at a speed of 180 km/h. What is the speed in meters per second? (2022)

A. 50 m/s
B. 45 m/s
C. 40 m/s
D. 60 m/s

Solution

Speed in m/s = 180 km/h × (1000 m / 1 km) × (1 h / 3600 s) = 50 m/s.

Correct Answer: B — 45 m/s

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Q. A tennis player serves the ball at a speed of 180 km/h. What is this speed in meters per second? (2023)

A. 50 m/s
B. 45 m/s
C. 40 m/s
D. 60 m/s

Solution

To convert km/h to m/s, divide by 3.6. Speed in m/s = 180 km/h ÷ 3.6 = 50 m/s.

Correct Answer: B — 45 m/s

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Q. A tennis player wins 75% of the matches he plays. If he plays 40 matches, how many matches does he win? (2023)

A. 30
B. 25
C. 35
D. 20

Solution

Matches won = 75% of 40 = 0.75 × 40 = 30 matches.

Correct Answer: A — 30

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Q. A tennis player won 12 matches out of 20 played. What is his winning percentage? (2023)

A. 60%
B. 50%
C. 70%
D. 40%

Solution

Winning percentage = (12/20) * 100 = 60%.

Correct Answer: A — 60%

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Q. A tennis player won 60% of his matches. If he played 50 matches, how many matches did he win? (2023)

A. 30
B. 25
C. 35
D. 40

Solution

Number of matches won = 60% of 50 = 0.6 * 50 = 30.

Correct Answer: A — 30

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Q. A tennis player won 80% of his matches. If he played 50 matches, how many matches did he lose? (2023)

A. 10
B. 20
C. 30
D. 40

Solution

Matches won = 80% of 50 = 40. Matches lost = 50 - 40 = 10.

Correct Answer: A — 10

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Q. A trade agreement between two countries is expected to increase trade by 25%. If the current trade volume is $200 million, what will be the new trade volume?

A. $220 million
B. $250 million
C. $275 million
D. $300 million

Solution

New trade volume = $200 million + (25% of $200 million) = $200 million + $50 million = $250 million.

Correct Answer: B — $250 million

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Q. A trade agreement was signed between 4 countries. If each country can trade with every other country, how many unique trade pairs can be formed? (2020)

A. 4
B. 6
C. 8
D. 12

Solution

Unique trade pairs = C(4, 2) = 4! / (2!(4-2)!) = 6.

Correct Answer: B — 6

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Q. A trade agreement was signed between 8 countries. If each country can form a partnership with every other country, how many unique partnerships can be formed?

A. 28
B. 56
C. 36
D. 64

Solution

Number of unique partnerships = C(8, 2) = 8! / (2!(8-2)!) = 28.

Correct Answer: A — 28

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Q. A trophy costs $150 and is awarded to the top three students in a competition. If the total cost of the trophies is $450, how many trophies were purchased? (2020)

A. 1
B. 2
C. 3
D. 4

Solution

Total cost of trophies = $450. Cost per trophy = $150. Number of trophies = 450 / 150 = 3.

Correct Answer: C — 3

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Q. As of 2023, what is the current account deficit of India as a percentage of GDP? (2023)

A. 1.5%
B. 2.0%
C. 2.5%
D. 3.0%

Solution

India's current account deficit is approximately 2.0% of GDP as of 2023.

Correct Answer: B — 2.0%

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Q. As of 2023, which country has the highest number of electric vehicles on the road? (2023)

A. USA
B. Norway
C. China
D. Germany

Solution

China has the highest number of electric vehicles on the road as of 2023.

Correct Answer: C — China

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Q. As of 2023, which country has the highest number of electric vehicles per capita? (2023)

A. Norway
B. Germany
C. USA
D. China

Solution

Norway has the highest number of electric vehicles per capita as of 2023.

Correct Answer: A — Norway

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Q. As of 2023, which country is the largest importer of Indian goods? (2023)

A. USA
B. China
C. UAE
D. Germany

Solution

The USA is the largest importer of Indian goods as of 2023.

Correct Answer: A — USA

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