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Pipe and Tank

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Question: One pipe can fill a pool in 6 hours and a second pipe can fill the same pool in 12 hours. If both pipes work together, how long will it take to fill the pool?

  1. a.
    4 hours
  2. b.
    4.5 hours
  3. c.
    3 hours
  4. d.
    3.5 hours
  5. e.
    None of these
Answer: a

Question: The water in a fish tank measuring 5/4 feet by 8 inches is 7 inches high. The water is poured into another tank measurinig 14 inches by 20 inches. What will be the height of water, in inches in the secont tank?

  1. a.
    1/4
  2. b.
    2
  3. c.
    3
  4. d.
    1/12
  5. e.
    None of these
Answer: c

Question: An empty swimming pool with a capacity of 5760 gallons is filled at a rate of 12 gallons per minute. How many does it take to fill the pool to capacity?

  1. a.
    8
  2. b.
    20
  3. c.
    96
  4. d.
    480
  5. e.
    720
Answer: d

Question: One-third of a cylindrical oil tank is filled.If 3 more litters are added a half of the tank will be filled. What is the capacity in litters of the tank?

  1. a.
    17
  2. b.
    18
  3. c.
    14
  4. d.
    15
  5. e.
    16
Answer: b

Question: A 45000 litter water tank is to be filled at the rate of 220 litters per minute. Estimate, to the nearest half an hour, how long it will take to fill the tank?

  1. a.
    4 hours
  2. b.
    7/2 hours
  3. c.
    3 hours
  4. d.
    5/2 hours
  5. e.
    None of these
Answer: b

Question: Which of the following fraction is the equivalent of 0.5%?

  1. a.
    1/20
  2. b.
    1/200
  3. c.
    1/2000
  4. d.
    1/5
  5. e.
    None of these
Answer: b

Question: Equal amounts of water were poured into two empty jars of different capacities, which made one jar 1/4 full and another jar 1/3 full.. If the water in the jar with the lesser capacity is then poured into the jar with the greatest capacity, what fraction of the larger jar will be filled with water?

  1. a.
    1/3
  2. b.
    1/4
  3. c.
    1/2
  4. d.
    1/5
  5. e.
    None of these
Answer: e

Question: A patrol tank that is 1/2 full has 8 gallons petrol removed. The tank is then 1/10 full. What is the capacity, in gallons of the tank?

  1. a.
    40
  2. b.
    31/2
  3. c.
    20
  4. d.
    30
  5. e.
    None of these
Answer: c

Question: An empty swimming pool can be filled to capacity through an inlet pipe in 3 hours and it can be completely drained by a drainpipe in 6 hours. If both pipes are fully open at the same time, in how many hours will the empty pool be filled to capacity?

  1. a.
    4
  2. b.
    6
  3. c.
    5
  4. d.
    5.5
  5. e.
    None of these
Answer: b

Question: Two pipes A & B would be fill a tank in 20 & 30 minutes respectively. Both pipes being oppen, find when A must be turned off so that the tank may be just filled in 15 minutes.

  1. a.
    After 10 minutes
  2. b.
    After 20 minutes
  3. c.
    After 15 minutes
  4. d.
    None
Answer: a

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