গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 8

71. The mean proportional between 234 and 104 is

1. 54
2. 40
3. 16
4. None of these

72. The true discount on a bill of Rs. 540 is Rs. 90. Find the banker’s discount ?

1. Rs. 110
2. Rs. 108
3. Rs. 60
4. Rs. 112

73. A tank is filled in 15 and 20 minutes respectively by two pipes X and Y. Bothe the pipes are opened together. But pipe X turned off after 4 minutes. The total time required to fill the tank is :

1. 12 min. 30 sec.
2. 14 min. 40 sec.
3. 10 min. 20 sec.
4. 11 min. 45 sec.

74. How many bottles can be produced by 10 machines in 4 minutes if 270 bottles can be produced using 6 identical machines in a minute?

1. 2700
2. 1800
3. 10800
4. 640

75. An observer is standing 203 m away from a tower and he is 1.6 m tall. From his eye to the top of the tower the angle of elevation is 30o. Find the height of the tower ?

1. 20. 21 m
2. 21.6 m
3. 22.3 m
4. 24. 8 m

76. The ratio between the school ages of neelam and shaan is 5:6 respectively. If the ratio between the one third age of neelam and half of the Shaan’s age is 5:9, then what is the school age of shaan?

1. 28 years
2. 32 years
3. 23 years
4. 39 years

77. Find the weight of Q. If the average weight of P, Q and R is 45 kg and the average weight of P and Q is 40 kg and that of Q and R is 43 kg.

1. 20 kg
2. 31 kg
3. 26 kg
4. 17 kg

78. A bag contains one rupee, 50-paise and 25-paise coins in the ratio 2 : 3 5. Their total value is Rs. 114. The value of 50 paise coins is:

1. Rs. 72
2. Rs. 28
3. Rs. 36
4. Rs. 49

79. A salesman is allowed 11/2% discount on the total sales made by him pluse a bonus if 1/2% on the sales over Rs.10.000. If his total earnings were Rs. 1990, then his total sales (in Rs.) were:

1. 42
2. 35
3. 34
4. 60

80. At present, the ratio between the ages of Kamlesh and Puneet is 4:3. After 6 years, Kamlesh’s age will be 26 years. What is the age of Puneet at present ?

1. 19 and half
2. 15 years
3. 21 years
4. 12 years

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।