গাণিতিক-যুক্তি – গণিত – কুইজ মডেল টেস্ট অনুশীলন – 7

61. Kim can do a work in 3 days while David can do the same work in 2 days. Both of them finish the work together and get Rs. 150. What is the share of Kim?

1. Rs. 75
2. Rs.40
3. Rs. 70
4. Rs. 60

62. In how many different ways can the letters of the word ‘OPTICAL’ be arranged so that the vowels always come together?

1. 720
2. 120
3. 4320
4. 2160

63. If A can do 1/5 of a work in 3 days and B can do 1/ 6 of the same work in 4 days, how much will A get if both work together and are paid Rs. 180 in all?

1. Rs. 120
2. Rs. 108
3. Rs. 38
4. Rs. 80

64. 2 sarees and 4 shirts costs Rs. 1600. 1 saree and 6 shirts can be bought from the same money. What price shall he pay if he buys 12 shirts ?

1. None of these
2. 1600
3. 3300
4. 2400

65. A motorist covers a distance of 39 km in 45 minutes by moving at a speed of x kmph for the first 15 minutes, then moving at double the speed for the next 20 minutes and then again moving at his original speed for the rest of the journey Then, x is equal to:

1. 54
2. 36
3. 31.2
4. 42

66. A milk vendor has 2 cans of milk. The first contains 25% water and the rest milk. The second contains 50% water. How much milk should he mix from each of the containers so as to get 12 litres of milk such that the ratio of water to milk is 3 : 5?

1. 0.126388888888889
2. 0.128472222222222
3. 0.254861111111111
4. 0.170138888888889

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

1. 36
2. 121
3. 169
4. 49

68. An automobile financier claims to be lending money at simple interest, but he includes th e interest every six months for calculating th principal. If he is charging an interest of 10°A the effective rate of interest becomes:

1. 0.1025
2. 0.15
3. 0.13
4. 0.11

69. A box contains 10 black and 10 white balls. The probability of draWing two balls of the same colour, is:

1. 42997
2. 43027
3. 43001
4. 43056

70. A ball is drawn at random from a bag with 6 black and 8 white balls. The probability that the ball drawn is white is :

1. 42798
2. 42832
3. 42802
4. 42754

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।