গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 40

391. Find out the wrong number in the given sequence of numbers.

1. 91
2. 56
3. 31
4. 15

392. A bag contains 6 white and 4 red.balls. Three balls are drawn at random. What is the probability that one ball is red and the other two ARE white?

1. 42799
2. 42804
3. 42737
4. 42928

393. Find the number of revolutions made by a wheel of 14 cogs if another wheel of 6 cogs makes 21 revolutions.

1. 9
2. 12
3. 4
4. 49

394. A financier claims to lend money at simple interest but for calculating the principal he includes the interest evey six months. What will be the effective rate of interest if he is charging an interest of 10% ?

1. 0.1075
2. 0.1
3. 0.1025
4. 0.105

395. Twelve children take sixteen days to complete a work which can be completed by eight adults in twelve days. Sixteen adults started working and after three days ten adults left and four children joined them. How many days will they take to complete the work?

1. 7 days
2. 5 days
3. Cannot be determined
4. 8 days

396. A, B and C together earn Rs. 300 per day, while A and C together earn Rs. 188 and B and C together earn Rs. 152. The daily earning of C is:

1. Rs. 112
2. Rs. 160
3. Rs.40
4. Rs. 70

397. Income of two companiel, A and B are in the ratio of 5 : 8. Had the income of company A been more by Rs. 25 lakhs, the ratio of their incomes would have been 5 : 4 respectively. What is the income of company B?

1. Rs. 45 lakhs
2. Rs. 65 lakhs
3. Rs. 80 lakhs
4. Rs. 40 lakhs

398. A sum of money is borrowed and paid back in two annual instalments of Rs. 852 each allowing 5% compound interest. The sum borrowed was:

1. Rs. 2000
2. Rs. 680
3. Rs. 1900
4. Rs. 1640

399. The age of father 10 years ago was 3 times the age of his son. Ten years hence, father’s age will be twice that of his son. Calculate the ratio of their present ages.

1. Sun Dec 31 09:02:00 UTC 1899
2. Sun Dec 31 05:02:00 UTC 1899
3. Sun Dec 31 07:03:00 UTC 1899
4. Sun Dec 31 13:04:00 UTC 1899

400. The area of a rectangle is 216 m2 and the ratio between its perimeter and breadth is 5:1. Determine the length of the rectangle.

1. 24 cm
2. 16 cm
3. Data inadequate
4. 18 cm

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।