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Question: If both length and width of a rectangular plot for a garden are increased by 20%, how many percent of the plot would be increased?

  1. a.
    20
  2. b.
    24
  3. c.
    36
  4. d.
    40
  5. e.
    None of these
Answer: e

Question: A reduction of 21% in the price of wheat enables a person to buy 10.5 kg more for Tk.100. What is the reduced price per kg?

  1. a.
    2.30
  2. b.
    2.50
  3. c.
    2
  4. d.
    2.25
  5. e.
    2.75
Answer: c

Question: 20% of 0.2 is equal to--

  1. a.
    1
  2. b.
    4
  3. c.
    0.4
  4. d.
    0.04
  5. e.
    0.004
Answer: d

Question: A glass was filled with 10 liters of water and 0.01 liter of water evaporated every day during a 20-day period. What percent of the original amount of water evaporated during this period?

  1. a.
    20%
  2. b.
    22%
  3. c.
    2.2%
  4. d.
    2%
  5. e.
    None of these
Answer: d

Question: A mixture of 20 kg of sprit and water contains 10% water. How much water must be added to this mixture to rais the percentage of water to 25%?

  1. a.
    4
  2. b.
    5
  3. c.
    8
  4. d.
    30
Answer: a

Question: A ball pen factory decided to reduce its production by 10% over that of previous month for next 3 months starting from February 1994. In January 1994, it produced 3000 ball pens. How many ball pens were produced in March 1994?

  1. a.
    2187
  2. b.
    2400
  3. c.
    2700
  4. d.
    2430
  5. e.
    2560
Answer: d

Question: A student first reduced a number by 20 percent and then increased it again by 20 percent. If the difference between the two new numbers was 8, then what is the original number?

  1. a.
    40
  2. b.
    50
  3. c.
    75
  4. d.
    100
Answer: b

Question: In a school election with three candidates, Zara receive 30 votes, Mamun received 50 votes and Humaira received 30 votes. What percentage of the total number of votes did Zara receive?

  1. a.
    60%
  2. b.
    66.66%
  3. c.
    80%
  4. d.
    120%
  5. e.
    None of these
Answer: a

Question: A rectangle is 14 cm long and 10 cm wide. If the length is reduced by x cms and its width is increased also x cms so as to make it a square, then its area changes by:

  1. a.
    4
  2. b.
    144
  3. c.
    12
  4. d.
    2
  5. e.
    None of these
Answer: a

Question: 72% of the students of a certain class took Biology and 44% took mathematics. If each students took Biology or Mathematics or both. If 40 students took both Biology and Mathematics then the total number of students in the class was---

  1. a.
    250
  2. b.
    320
  3. c.
    200
  4. d.
    240
  5. e.
    230
Answer: a

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