গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 6

51. A fruit seller had some oranges. He sells 40% oranges and still has 420 oranges. Originally, he had ________ oranges

1. 588 apples
2. 672 apples
3. 600 apples
4. 700 apples

52. Sixteen men can complete a work in twelve days. Twenty-four children can complete the same work in eighteen days. Twelve men and eight children started working and after eight days three more children joined them. How many days will they now take to complete the remaining work?

1. 4 days
2. 9 days
3. 5 days

53. What is the speed of the boat in still water if the boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance upstream, it takes 4 hours?

1. 4 km/hr
2. 6 km/hr
3. Data inadequate
4. 8 km/hr

54. When two dice are tossed, what is the probability that the total score is a prime number ?

1. 42867
2. 42864
3. 42755
4. 19238

55. What percentage of numbers from 1 to 70 have 1 or 9 in the unit’s digit?

1. 21
2. 1
3. 20
4. 14

56. While measuring the side of a square, if an error of 2% is committed, what will the error committed in the area of the square?

1. 0.02
2. 0.0202
3. 0.04
4. 0.0404

57. A number gets reduced to its one-third when 48 is subtracted from it. What is two-third of that number?

1. 22
2. 76
3. 48
4. 36

58. The third proportional to (x2 – y2) and (x-y) is:

1. x-y / x+y
2. (x – y)
3. x + y /x – y
4. (x + y)

59. In what ratio must a grocer mix two varieties of pulses worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

1. Sun Dec 31 03:02:00 UTC 1899
2. Sun Dec 31 04:05:00 UTC 1899
3. Sun Dec 31 03:04:00 UTC 1899
4. Sun Dec 31 03:05:00 UTC 1899

60. Which of the following statements is correct ?

1. log (2 + 3) = log (2 x 3)
2. log 1 = infinite
3. log0 = 0
4. loge = 1

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।