General knowledge Material- all Competitive

What is the fourth proportional to 24, 120 and 22?
  1. 110
  2. 112
  3. 105
  4. 109
Area of 4 walls of a cuboid 400 sq cm, its length is 15 cm and height is 8 cm. What is its breadth (in cm)?
  1. 12
  2. 10
  3. 11
  4. 8
A can do 75% of a job in 9 days and B can do half of the job in 8 days. If they work on it together, then in how many days can they do half of the job?
  1. 40/7
  2. 24/7
  3. 7/2
  4. 9/2
20% of a = b, then b% of 20 is the same as _________ of a.
  1. 80%
  2. 40%
  3. 8%
  4. 4%
What is the average of all numbers between 8 and 74 which are divisible by 7?
  1. 40
  2. 42
  3. 41
  4. 43
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