অণুজীব

গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 18

171. A jar full of wine contains 40% alcohol. A part of this wine is replaced by another containing 19% alcohol and now the percentage of alcohol was found to be 26%. Find the quantity of wine replaced.

  1. 42738
  2. 42769
  3. 42771
  4. 42799

172. Two numbers product is 9375 and the quotient is 15 when the larger one is divided by the smaller. Find the sum of the numbers ?

  1. 100
  2. 200
  3. 400
  4. 300

173. Sumitra has an average of 56%on her first 7 Examination. How much she should make on her eighth examination to obtain an average of 60% on 8 examinations?

  1. 0.68
  2. 0.88
  3. 0.92
  4. 0.78

174. A man is cycling around a park at the speed of 12km/hr and he completes a single round in 8 minutes. If the ratio of the length and breadth of the rectangular park is 3:2, find the area of the park.

  1. 307200
  2. 153600
  3. 15360
  4. 30720

175. In a school the number of boys and that of the girls are in the respective ratio of 2 : 3 If the number of boys is increased by 20% and that of girls is increased by 10%, what will be the new ratio of number of boys to that of the girls?

  1. 0.544444444444444
  2. 0.340972222222222
  3. 0.297916666666667
  4. 0.546527777777778

176. Find the angle between the hands of the clock at 3:40.

  1. 130 degree
  2. 125 degree
  3. 135 degree
  4. 120 degree

177. In a game of 100 points, P can give Q 20 points and R 28 points. Then, Q can give R:

  1. 40 points
  2. 10 points
  3. 8 points
  4. 14 points

178. In a school, seats for Humanities, Science and Commerce are in the ratio 5 : 7 : 8. The seats are to be increased by 40%, 50% and 75% respectively. The ratio of the increased seats will be :

  1. Sun Dec 31 06:07:08 UTC 1899
  2. Sun Dec 31 02:03:04 UTC 1899
  3. None of these
  4. Sun Dec 31 06:08:09 UTC 1899

179. The Sum of the number of boys and girls in a school is 150. If the number of boys is x, then the number of girls becomes x% of the total number of students. The number of boys is:

  1. 95
  2. 65
  3. 60
  4. 51

180. A and B together can complete a work in 12 days. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work?

  1. 13 days
  2. 22 days
  3. 15 days
  4. 16 days

আমাদের কাছে থাকা লক্ষ লক্ষ মডেল টেস্ট থেকে প্রাকটিজের জন্য কিছু এখানে তুলে ধরা হল। প্রতিটি অধ্যায়ের উপরে ইশিখন.কম কুইজ চ্যালেঞ্জ এ আছে শত শত মডেল টেস্ট বার বার মডেল টেস্ট দিয়ে নিজেকে যাচাই কর এবং পুরো বাংলাদেশের সকল শিক্ষার্থীর সাথে আপনার মেধা তালিকা দেখুন। প্রশ্নে কোন প্রকার ভুল থাকলে সঠিক উত্তরসহ নিচে কমেন্ট করে জানাবেন, আমরা ঠিক করে দেবো।

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