General Knowledge
Q. If a helicopter ascends at a rate of 300 meters per minute, how high will it be after 10 minutes? (2021)
A.
2000 m
B.
2500 m
C.
3000 m
D.
3500 m
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Solution
Height = Rate × Time = 300 m/min × 10 min = 3000 m
Correct Answer: C — 3000 m
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Q. If a location is at 120 degrees West longitude, what is its time zone relative to GMT? (2023)
A.
GMT-8
B.
GMT-7
C.
GMT-6
D.
GMT-5
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Solution
120 degrees West corresponds to GMT-8, as each 15 degrees represents one hour.
Correct Answer: A — GMT-8
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Q. If a member of Parliament serves a term of 5 years and is re-elected for another term, how many years will they serve in total?
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Solution
Total years served = 5 years + 5 years = 10 years.
Correct Answer: B — 10
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Q. If a military vehicle travels at a speed of 60 km/h, how far will it travel in 2.5 hours? (2021)
A.
120 km
B.
150 km
C.
180 km
D.
200 km
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Solution
Distance = Speed × Time = 60 km/h × 2.5 h = 150 km
Correct Answer: B — 150 km
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Q. If a national event has a budget of $50,000 and 40% is allocated for marketing, how much is allocated for marketing?
A.
$20,000
B.
$25,000
C.
$30,000
D.
$15,000
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Solution
Amount allocated for marketing = $50,000 * 0.40 = $20,000.
Correct Answer: A — $20,000
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Q. If a national event has a total of 500 volunteers and 60% of them are from colleges, how many volunteers are from colleges?
A.
300
B.
250
C.
200
D.
350
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Solution
Number of volunteers from colleges = 500 * 0.60 = 300.
Correct Answer: A — 300
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Q. If a national event is attended by 1,500 people and 30% of them are students, how many students attended the event?
A.
300
B.
450
C.
500
D.
600
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Solution
Number of students = 1,500 * 0.30 = 450.
Correct Answer: B — 450
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Q. If a person consumes 2500 calories a day and 30% of those calories come from fats, how many calories are derived from fats?
A.
500 calories
B.
600 calories
C.
700 calories
D.
750 calories
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Solution
30% of 2500 calories = 0.30 * 2500 = 750 calories.
Correct Answer: A — 500 calories
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Q. If a person consumes 3000 calories a day and wants to ensure that 25% of their intake is from proteins, how many grams of protein should they consume (1 gram of protein = 4 calories)?
A.
150 grams
B.
200 grams
C.
250 grams
D.
300 grams
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Solution
25% of 3000 calories = 0.25 * 3000 = 750 calories from proteins. 750 calories / 4 calories per gram = 187.5 grams, rounded to 188 grams.
Correct Answer: B — 200 grams
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Q. If a person has a 20% chance of contracting a disease and a 30% chance of recovery, what is the probability that the person will contract the disease and not recover? (2022)
A.
0.14
B.
0.06
C.
0.1
D.
0.2
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Solution
Probability of contracting and not recovering = Probability of contracting × (1 - Probability of recovery) = 0.20 × (1 - 0.30) = 0.20 × 0.70 = 0.14.
Correct Answer: A — 0.14
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Q. If a person needs 2500 calories a day and wants to get 20% of their calories from fats, how many grams of fat should they consume (1 gram of fat = 9 calories)?
A.
55 grams
B.
60 grams
C.
70 grams
D.
75 grams
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Solution
20% of 2500 calories = 0.20 * 2500 = 500 calories from fats. 500 calories / 9 calories per gram = 55.56 grams, rounded to 56 grams.
Correct Answer: C — 70 grams
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Q. If a place is located at 120°W longitude, what is its time difference from GMT?
A.
-8 hours
B.
-7 hours
C.
-6 hours
D.
-5 hours
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Solution
120°W corresponds to 120 / 15 = 8 hours behind GMT, hence -8 hours.
Correct Answer: A — -8 hours
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Q. If a plane travels from 60°E to 60°W, how many hours will it take to cross this distance if it travels at a speed of 15° per hour?
A.
8 hours
B.
10 hours
C.
12 hours
D.
15 hours
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Solution
The total distance is 60° + 60° = 120°. At 15° per hour, it will take 120 / 15 = 8 hours.
Correct Answer: B — 10 hours
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Q. If a radar can detect objects up to a distance of 50 km, what is the maximum area it can cover? (2022)
A.
7850 km²
B.
5000 km²
C.
10000 km²
D.
15000 km²
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Solution
Area = πr² = π(50 km)² ≈ 7850 km²
Correct Answer: A — 7850 km²
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Q. If a rectangle has a length of 10 m and a width of 5 m, what is its perimeter? (2023)
A.
30 m
B.
25 m
C.
20 m
D.
15 m
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Solution
Perimeter = 2(length + width) = 2(10 + 5) = 30 m.
Correct Answer: A — 30 m
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Q. If a rectangle has a length of 10 units and a width of 5 units, what is its perimeter?
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Solution
Perimeter = 2 * (length + width) = 2 * (10 + 5) = 30 units.
Correct Answer: A — 30
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Q. If a river has a sediment transport capacity of 200 kg/m³ and flows at a rate of 10 m³/s, what is the total sediment transported in one hour? (2000)
A.
72000 kg
B.
60000 kg
C.
360000 kg
D.
120000 kg
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Solution
Total sediment = Sediment capacity × Flow rate × Time = 200 kg/m³ × 10 m³/s × 3600 s = 7200000 kg.
Correct Answer: C — 360000 kg
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Q. If a river's flow rate increases by 20% and its original flow rate was 50 m³/s, what is the new flow rate?
A.
60 m³/s
B.
70 m³/s
C.
80 m³/s
D.
90 m³/s
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Solution
New flow rate = Original flow rate + (20% of Original flow rate) = 50 m³/s + (0.2 × 50 m³/s) = 60 m³/s.
Correct Answer: A — 60 m³/s
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Q. If a river's flow rate is 500 cubic meters per second, how many liters of water flow in 10 minutes? (2019)
A.
300,000 L
B.
300,000,000 L
C.
1,800,000 L
D.
1,500,000 L
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Solution
Flow in 10 minutes = 500 m³/s × 600 s = 300,000 m³ = 300,000,000 L.
Correct Answer: B — 300,000,000 L
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Q. If a river's sediment load is 200 kg/m³ and the river has a flow rate of 10 m³/s, what is the total sediment transported in one hour? (2022)
A.
720,000 kg
B.
600,000 kg
C.
1,200,000 kg
D.
1,440,000 kg
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Solution
Sediment transported = sediment load × flow rate × time = 200 kg/m³ × 10 m³/s × 3600 s = 720,000 kg.
Correct Answer: D — 1,440,000 kg
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Q. If a riverbank erodes at a rate of 2 meters per year, how much will it erode in 5 years? (2023)
A.
5 m
B.
10 m
C.
15 m
D.
20 m
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Solution
Erosion = rate × time = 2 m/year × 5 years = 10 m.
Correct Answer: B — 10 m
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Q. If a soldier can carry a load of 40 kg and he carries 5 such loads, what is the total weight he carries? (2019)
A.
150 kg
B.
200 kg
C.
250 kg
D.
300 kg
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Solution
Total Weight = Load × Number of Loads = 40 kg × 5 = 200 kg
Correct Answer: B — 200 kg
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Q. If a soldier can carry a load of 40 kg for 5 km, how much weight can he carry for 10 km if the weight carried is directly proportional to the distance? (2020)
A.
20 kg
B.
30 kg
C.
40 kg
D.
50 kg
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Solution
If distance doubles, weight carried is halved. So, 40 kg / 2 = 20 kg.
Correct Answer: A — 20 kg
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Q. If a sound wave travels from air into water, what happens to its speed?
A.
Increases
B.
Decreases
C.
Remains the same
D.
Becomes zero
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Solution
Sound travels faster in water than in air due to higher density.
Correct Answer: A — Increases
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Q. If a student is awarded a medal for scoring 85% in an exam, and the total marks are 200, how many marks did he score?
A.
150
B.
160
C.
170
D.
180
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Solution
Marks scored = 85% of 200 = 0.85 * 200 = 170.
Correct Answer: B — 160
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Q. If a student received an award of $3000 and decided to save 25% of it, how much money will he save?
A.
$500
B.
$750
C.
$1000
D.
$1500
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Solution
Amount saved = 25% of 3000 = 0.25 * 3000 = $750.
Correct Answer: C — $1000
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Q. If a student scored 45 out of 60 in an exam, what is the percentage of marks obtained? (2023)
A.
70%
B.
75%
C.
80%
D.
85%
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Solution
Percentage = (45 / 60) * 100 = 75%.
Correct Answer: B — 75%
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Q. If a student scored 80 marks out of 100 in Mathematics and received a merit award, what is the percentage of marks obtained? (2021)
A.
70%
B.
80%
C.
90%
D.
100%
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Solution
Percentage = (Marks Obtained / Total Marks) * 100 = (80 / 100) * 100 = 80%.
Correct Answer: B — 80%
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Q. If a student scored 80 marks out of 100 in Mathematics and received a scholarship award of $2000, what is the percentage of marks scored by the student? (2000)
A.
70%
B.
80%
C.
90%
D.
100%
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Solution
Percentage = (Marks obtained / Total marks) * 100 = (80 / 100) * 100 = 80%
Correct Answer: B — 80%
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Q. If a student scored 88 marks out of 120, what is the percentage of marks obtained? (2022)
A.
70%
B.
72%
C.
73.33%
D.
75%
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Solution
Percentage = (88 / 120) * 100 = 73.33%.
Correct Answer: C — 73.33%
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