গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 27

261. Jitu scores 60,80,50 and 90 percent marks in the subjects A,B,C,D and E respectively. How ever, the weights attached to those subjects are 5,4,3,2 and 1 respectively. Which of the following re presents the weighted average of marks scored by jitu in these five subjects

1. 78
2. 75
3. 62
4. 79

262. Find the value of 4a2 – 4a + 1 + 3a, if a = 0.1039

1. 0.1039
2. 0.2078
3. 2.1039
4. 1.1039

263. Two balls are drawn at random from a bag containing 2 red, 3 green and 2 blue balls. The probability that none of the balls drawn is blue is :

1. 42773
2. 42862
3. 43060
4. 43029

264. Find the profit earned by Raman, if he sold the cow for Rs. 3600 which was purcahsed the same day for Rs. 3000 provided the rate of interest be 10% per annum.

1. 0.085
2. No profit
3. 0.06
4. 0.1

265. In an examination of n questions, a student replied 15 out of the first 20 questions correctly. Of the remaining questions, he answered one thired correctly. All the question have the same credit. If the student gets 50%marks, the value of n is:

1. 50
2. 82
3. 67
4. 30

266. The tank is filled in 6 hours by a tap. Three more similar taps are opened, after the tank is half filed. The total time taken to completely fill the tank is :

1. 4 hrs 15 min
2. 3 hrs 15 min
3. 3 hrs 45 min
4. 4 hrs

267. A sum of money invested at compound interest its to Rs. 800 in 3 years and to Rs. 840 in 4 years. The rate of intrest per annum is:

1. 0.08
2. 0.04
3. 0.05
4. 0.07

268. A sum of money is sufficient to pay A’g wages for 21 days and B’s wages for.28 days. The same money is suffici.ent.to pay the wages of both for:

1. 16 days
2. 13 days
3. 49/4 days
4. 12 days

269. The product of the digits of a two-digit number is 8. The digits are reversed when 18 is added to the number. Find the number ?

1. 12
2. 61
3. 24
4. 44

270. The length of a blackboard is 8 cm more than its breadth. If the length is increased by 7 cm and breadth is decreased by 4 cm, the area remains the same. The length and breadth of the blackboard (in cm) will be:

1. 40 32
2. 36 26
3. 58 48
4. 28 20

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।