General Knowledge
Q. During a national event, 25% of the attendees are from rural areas. If there are 800 attendees, how many are from urban areas?
A.
600
B.
200
C.
400
D.
300
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Solution
Number of attendees from urban areas = 800 * (1 - 0.25) = 800 * 0.75 = 600.
Correct Answer: A — 600
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Q. How many degrees of longitude correspond to a time difference of 4 hours? (2022)
A.
60 degrees
B.
45 degrees
C.
30 degrees
D.
15 degrees
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Solution
A time difference of 4 hours corresponds to 4 * 15 = 60 degrees of longitude.
Correct Answer: A — 60 degrees
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Q. How many grams of protein are recommended daily for an average adult?
A.
30 grams
B.
50 grams
C.
70 grams
D.
100 grams
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Solution
The Recommended Dietary Allowance (RDA) for protein is about 50 grams for an average adult.
Correct Answer: B — 50 grams
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Q. How many members are there in the Rajya Sabha?
A.
250
B.
245
C.
240
D.
200
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Solution
The Rajya Sabha can have a maximum of 250 members, out of which 238 are elected and 12 are nominated.
Correct Answer: B — 245
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Q. How many members can the President of India nominate to the Rajya Sabha? (2022)
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Solution
The President of India can nominate 12 members to the Rajya Sabha from among persons having special knowledge or practical experience in fields such as literature, science, art, and social service.
Correct Answer: B — 12
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Q. How many time zones are there in the world if each zone is 15 degrees apart?
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Solution
The Earth is 360 degrees, and if each time zone is 15 degrees, then 360 / 15 = 24 time zones.
Correct Answer: B — 24
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Q. If 200 g of water at 80°C is mixed with 300 g of water at 20°C, what will be the final temperature of the mixture? (2019)
A.
30°C
B.
40°C
C.
50°C
D.
60°C
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Solution
Using the formula m1c1T1 + m2c2T2 = (m1 + m2)cT, we find T = (200*80 + 300*20) / (200 + 300) = 40°C.
Correct Answer: B — 40°C
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Q. If 30% of the members of the Rajya Sabha are from the ruling party and there are 245 members, how many members are from the ruling party?
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Solution
Members from ruling party = 30% of 245 = 0.3 * 245 = 73.5, rounded to 74.
Correct Answer: A — 70
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Q. If a bill is introduced in the Lok Sabha and it takes 3 readings to pass, and each reading takes 5 days, how many days does it take to pass the bill?
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Solution
Total days = 3 readings * 5 days per reading = 15 days.
Correct Answer: B — 15
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Q. If a bill is introduced in the Lok Sabha and it takes an average of 15 days to pass, how many days will it take to pass 5 such bills?
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Solution
Total days = 5 bills * 15 days/bill = 75 days.
Correct Answer: A — 60
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Q. If a car accelerates uniformly from rest to a speed of 25 m/s in 10 seconds, what is the distance covered during this time? (2023)
A.
125 m
B.
150 m
C.
200 m
D.
250 m
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Solution
Distance = ut + (1/2)at². Here, u = 0, a = (25-0)/10 = 2.5 m/s². Distance = 0 + (1/2)(2.5)(10²) = 125 m.
Correct Answer: A — 125 m
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Q. If a car travels 60 km in 1 hour, how far will it travel in 2.5 hours at the same speed? (2019)
A.
150 km
B.
120 km
C.
180 km
D.
100 km
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Solution
Distance = Speed × Time = 60 km/h × 2.5 h = 150 km.
Correct Answer: A — 150 km
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Q. If a car travels 60 km in 1 hour, how long will it take to travel 180 km at the same speed? (2019)
A.
2 hours
B.
3 hours
C.
4 hours
D.
1.5 hours
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Solution
Time = Distance/Speed = 180 km / 60 km/h = 3 hours.
Correct Answer: B — 3 hours
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Q. If a car travels 60 km in 1 hour, what is its speed in m/s?
A.
10 m/s
B.
15 m/s
C.
20 m/s
D.
25 m/s
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Solution
Speed in m/s = (distance in km * 1000) / (time in hours * 3600). Here, speed = (60 * 1000) / (1 * 3600) = 16.67 m/s, which rounds to 20 m/s.
Correct Answer: C — 20 m/s
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Q. If a car travels 60 km in 1 hour, what is its speed in meters per second?
A.
16.67 m/s
B.
20 m/s
C.
25 m/s
D.
30 m/s
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Solution
Speed in m/s = (60 km * 1000 m/km) / (3600 s) = 16.67 m/s.
Correct Answer: A — 16.67 m/s
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Q. If a certain disease affects 1 in every 1000 people, what is the expected number of cases in a population of 50,000? (2020)
A.
50
B.
100
C.
200
D.
500
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Solution
Expected cases = (1/1000) * 50000 = 50 cases.
Correct Answer: B — 100
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Q. If a circle has a radius of 7 cm, what is its circumference?
A.
14π cm
B.
21π cm
C.
28π cm
D.
49π cm
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Solution
The circumference of a circle is given by 2πr. Here, r = 7 cm, so circumference = 2π * 7 = 14π cm.
Correct Answer: B — 21π cm
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Q. If a circle has a radius of 7 cm, what is its circumference? (Use π ≈ 3.14)
A.
21.98 cm
B.
43.96 cm
C.
14 cm
D.
28 cm
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Solution
Circumference = 2 * π * radius = 2 * 3.14 * 7 ≈ 43.96 cm.
Correct Answer: B — 43.96 cm
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Q. If a circle has a radius of 7 units, what is its area?
A.
154
B.
144
C.
100
D.
50
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Solution
Area = π * r^2 = π * 7^2 = 154 (using π ≈ 22/7).
Correct Answer: A — 154
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Q. If a circuit has a resistance of 5 ohms and a current of 2 amperes, what is the voltage across the circuit?
A.
10 V
B.
5 V
C.
2 V
D.
1 V
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Solution
Using Ohm's Law (V = I * R), V = 2 A * 5 Ω = 10 V.
Correct Answer: A — 10 V
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Q. If a cyclist travels at a speed of 15 km/h for 1 hour and then at 20 km/h for 2 hours, what is the average speed for the entire journey? (2022)
A.
17 km/h
B.
18 km/h
C.
19 km/h
D.
20 km/h
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Solution
Total distance = 15 km + 40 km = 55 km; Total time = 1 h + 2 h = 3 h; Average speed = Total distance / Total time = 55 km / 3 h = 18.33 km/h.
Correct Answer: B — 18 km/h
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Q. If a disease has a 15% prevalence in a population and a test has a 95% specificity, what is the probability of a false positive result? (2021)
A.
0.05
B.
0.15
C.
0.20
D.
0.25
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Solution
The probability of a false positive is equal to 1 - specificity = 1 - 0.95 = 0.05.
Correct Answer: A — 0.05
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Q. If a disease has a basic reproduction number (R0) of 2.5, how many people can one infected person potentially infect in 3 generations? (2023)
A.
15.625
B.
10
C.
20
D.
5
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Solution
Total infections = R0^n = 2.5^3 = 15.625.
Correct Answer: A — 15.625
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Q. If a disease has an incidence rate of 0.1% in a population of 1,000,000, how many new cases are expected in a year? (2022)
A.
100
B.
200
C.
300
D.
400
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Solution
Expected new cases = 0.1% of 1,000,000 = 0.001 * 1,000,000 = 100 cases.
Correct Answer: A — 100
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Q. If a disease spreads at a rate of 3% per week, what will be the total percentage of the population infected after 4 weeks, assuming no recovery? (2021)
A.
12.36%
B.
10.5%
C.
11.5%
D.
15%
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Solution
Using the formula for compound growth: Total infected = 100 × (1 - (1 - 0.03)^4) = 100 × (1 - 0.88) = 12.36%.
Correct Answer: A — 12.36%
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Q. If a drone can cover 120 km in 1.5 hours, what is its average speed? (2022)
A.
70 km/h
B.
80 km/h
C.
90 km/h
D.
100 km/h
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Solution
Average Speed = Total Distance / Total Time = 120 km / 1.5 h = 80 km/h
Correct Answer: B — 80 km/h
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Q. If a food item contains 10 grams of protein per serving and a person needs 60 grams of protein daily, how many servings must they consume?
A.
4 servings
B.
5 servings
C.
6 servings
D.
7 servings
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Solution
60 grams / 10 grams per serving = 6 servings.
Correct Answer: B — 5 servings
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Q. If a food label states that a serving contains 5 grams of sugar and the daily recommended intake is 25 grams, what percentage of the daily intake does one serving represent?
A.
10%
B.
15%
C.
20%
D.
25%
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Solution
(5 grams / 25 grams) * 100 = 20%.
Correct Answer: A — 10%
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Q. If a football team has 22 players and 5 are substitutes, what fraction of the team are substitutes? (2022)
A.
1/4
B.
1/5
C.
1/3
D.
1/2
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Solution
Fraction of substitutes = Number of substitutes / Total players = 5 / 22.
Correct Answer: A — 1/4
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Q. If a football team has a win rate of 40% and they played 30 matches, how many matches did they win? (2022)
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Solution
Matches won = 40% of 30 = 0.4 * 30 = 12.
Correct Answer: A — 10
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