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Arithmetic Aptitude :: Percentage

  1. A and B are two fixed points 5 cm apart and c is a point on AB such that AC = 3 cm. If the length of AC is increased by 6 % the length of CB is decreased by:
  2. A.
    6 %
    B.
    7 %
    C.
    8 %
    D.
    9 %

  3. The length of a rectangle is increased by 10 % and breadth decreased by 10 % Then the area of a new rectangle is:
  4. A.
    neither increased nor decreased
    B.
    increased by 1 %
    C.
    decreased by 1 %
    D.
    decreased by 10 %

  5. A typist uses a paper 30 cm by 15 cm. He leaves a margin of 2.5 cm at the top as well as at the bottom and 1.25 cm on either side. What percentage of paper area is approximately available for typing?
  6. A.
    65 %
    B.
    70 %
    C.
    80 %
    D.
    60%

  7. If the side of a square is increased by 25 %. Then its area is increased by:
  8. A.
    25 %
    B.
    55%
    C.
    40.5 %
    D.
    56.25 %

  9. Two number is first increased by 10 % and then reduced by 10 % the number:
  10. A.
    2:5
    B.
    4:5
    C.
    6:7
    D.
    3:5

  11. When a number is first increased by 10 % and then reduced by 10 % the number:
  12. A.
    does not change
    B.
    decreased by 1 %
    C.
    increased by 1 %
    D.
    None of these

  13. A period of 4 hrs 30 min is what percent of a day?
  14. A.
    18 3/4 %
    B.
    20 %
    C.
    16 3/4 %
    D.
    19 %

  15. A bucket contains 2 litres more water when it is filled 80 % in comparison when it is filled 66 2/4 % what is the capacity of the bucket?
  16. A.
    10 litres
    B.
    15 litres
    C.
    66 2/3 litres
    D.
    20 litres

  17. A dishonest dealer claims to sell his goods at the cost price but uses a false weight of 900 gm for 1 kg what is his gain percent?
  18. A.
    13 %
    B.
    11 1/9 %
    C.
    11.25 %
    D.
    12 1/9 %

  19. Out of 100 students, 50 failed in English and 30 in Mathematics. If 12 students fail in both English and Mathematics. Then the number of students who passed in both the subjects is
  20. A.
    26
    B.
    28
    C.
    30
    D.
    32