Class VIII

Which of the following is ease of direct variation;
  1. If the length of radius is increased the circumference will be increased
  2. If number of students is a hostel are increased then the fixed food provision will last for less days
  3. For fixed duration, more the periods, lesser will be the duration of one period
  4. In case of a cylindrical vessel, lesser the diameter more is the level of water in it.
If amount of work completed by ‘A’ in one day is then the whole work will be finished by ‘A’ is:
  1. n days
  2. 1 – n days
  3. n – 1 days
  4. None of these
If ‘x’ and ‘y’ are in a direct proportion then which of the following is correct?
  1. x – y = constant
  2. x + y = constant
  3. x × y = constant
  4. x/y=constant
. “If speed is more than time to cover a fixed distance would be less”. This is a ease of:
  1. inverse variation
  2. direct variation
  3. direct variation
  4. None of these
If ‘A’ can finish a work in ‘n’ days then part of work finished in 1 day is:
  1. 1 – n
  2. 1/n
  3. n-1
  4. None of these
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