Three pipes fill water at rates in the ratio 2 : 3 : 5. Together they fill a tank in 3 hours. How long would the slowest pipe alone take?
Correct answer B. 15 hours
Subject / 2,109 questions
Maths MCQs & Aptitude MCQs
Page 26 of Aptitude multiple-choice questions with answers. Tap an option to check yourself.
Page 26 of 106
- Numbers 104
- Percentage 103
- Age Questions 95
- Profit and Loss 82
- Ratio and Proportion 80
- Time and Work 73
- Alligation or Mixture 73
- Fraction and Decimal 72
- Compound Interest 71
- Simple Interest 69
- Area 64
- Volume and Surface Area 64
- Equations and Inequalities 64
- Time and Distance 64
- Simplification 60
- Permutation and Combination 59
- Average 59
- Basic Algebra 58
- Pipes and Cistern 57
- Partnership 56
- Square Root and Cube Root 51
- Problems on Numbers 47
- Probability 45
- Problems on Trains 44
- Odd Man Out and Series 43
- Surds and Indices 43
- Clock 39
- Races and Games 38
- Height and Distance 37
- True Discount 36
- Stocks and Shares 34
- Boats and Streams 34
- Banker's Discount 32
- Counting 32
- Logarithm 30
- Problems on H.C.F and L.C.M 30
- Calendar 30
- Road Problems 26
- Word Problems 25
- Men and Food 24
A leak can empty a full cistern in 6 hours. When an inlet supplying 4 litres per minute is opened, the full cistern takes 9 hours to empty. What is the capacity of the cistern?
Correct answer B. 4320 litres
A pipe fills a tank in 1 hour 20 minutes. What fraction of the tank will it fill in 32 minutes?
Correct answer C. 2/5
Advertisement
Pipes A and B fill a tank in 18 minutes and 27 minutes. How long do they take together?
Correct answer B. 10.8 minutes
Two trains start at the same moment from stations P and Q towards each other. After meeting, the first train takes 16 hours to reach Q and the second takes 9 hours to reach P. What is the ratio of their speeds (first : second)?
Correct answer C. 3 : 4
A boy runs round a square field of side 75 m at 9 km/h. How long does he take to complete one round?
Correct answer B. 120 seconds
A cart wheel has a diameter of 70 cm. Taking π = 22/7, how many complete revolutions will it make in covering 1.1 km?
Correct answer A. 500
A car covers 900 m in 45 seconds. What is its speed in km/h?
Correct answer C. 72 km/h
A man walks to a village at 6 km/h and rides back by tonga at 18 km/h. The round trip takes 4 hours in all. How far is the village?
Correct answer C. 18 km
Advertisement
Car A leaves town X at 8 a.m. towards town Y at 45 km/h. Car B leaves Y at 9 a.m. towards X at 55 km/h. If X and Y are 345 km apart, at what time do they meet?
Correct answer D. 12 noon
A 200 m long train running at 60 km/h passes a jogger running at 12 km/h in the opposite direction. How long does it take to pass him?
Correct answer B. 10 seconds
Two trains, each 125 m long, run in opposite directions on parallel tracks and cross each other in 10 seconds. If one runs at 40 km/h, what is the speed of the other?
Correct answer A. 50 km/h
A train crosses a 350 m bridge in 30 seconds and a lamp post in 16 seconds. What is the speed of the train?
Correct answer C. 90 km/h
Cycling at 12 km/h, a student is 8 minutes late for college; cycling at 15 km/h, he is 4 minutes early. How far is the college?
Correct answer C. 12 km
By walking at 3/2 of his usual speed, Kamal reaches the market 25 minutes earlier than usual. What is his usual time?
Correct answer B. 75 minutes
Advertisement
Two cyclists start from the same point and ride in opposite directions at 14 km/h and 16 km/h. After how long will they be 75 km apart?
Correct answer A. 2.5 hours
Two runners start together from the same point along the same road at 9 km/h and 12 km/h. How far apart are they after 40 minutes?
Correct answer A. 2 km
Car P leaves a depot at 10:00 a.m. at 48 km/h. Car Q leaves the same depot at 10:30 a.m. on the same road at 64 km/h. How far from the depot does Q overtake P?
Correct answer C. 96 km
Train X, 270 m long and running at 72 km/h, overtakes train Y, 230 m long and running at 36 km/h in the same direction. How long does X take to pass Y completely?
Correct answer D. 50 seconds
A trader drives from Lahore to a nearby town at 60 km/h. At what speed must he return along the same road so that his average speed for the round trip is 72 km/h?
Correct answer C. 90 km/h