FactorsMultipleGCF and LCM

1. A number when divided by 105 leaves 99 as remainder. What will be the number if the number is devided by 21?

• ক. 9
• খ. 14
• গ. 20
• ঘ. 6

2. Mr. Mamun bought 73 rolls of film. He can take 24 pictures with each roll of film. What is the total number of pictures he can take with 73 rolls of film?

• ক. 1642
• খ. 1652
• গ. 1742
• ঘ. 1752

3. Saif charges Tk.5.00 for every hour he works. Last week he worksd for 8 hours. He spent Tk. 12.00 of the money he earned. Which expression could he used to find how much he had left?

• ক. Tk.5.00 × 8 + Tk.12.00
• খ. Tk.5.00 × 8 - Tk.12.00
• গ. Tk.5.00/8 - Tk.12.00
• ঘ. (Tk.5.00 × 8)/ Tk.12.00

4. In the figure below ACDH and BCEF are rectangles, AH = 3, GH = 3, GF = 3 and FE = 6, what is the area of BCDG?

• ক. 5
• খ. 10
• গ. 15
• ঘ. 18

5. A full can of petrol weights 1.5 kgs. When half full it wights 1 kg. What is the weight of the empty Can?

• ক. 0.2 kg
• খ. 0.25 kg
• গ. 0.5 kg
• ঘ. 0.75 kg

6. What is the minimum number of sweets that must be added to an existing batch of 240 sweets, so that the total batch can equally be devided among 2, 5 and 7 persons?

• ক. 15
• খ. 25
• গ. 40
• ঘ. 60

7. A toy store regularly sells all stock at a discount of 20 percent to 40 percent. If an additional 25 percent were deducted from the discount price during a special sele, what would be the lowest possible price of a toy costing Tk.16 before any discount?

• ক. Tk.5.60
• খ. Tk.7.20
• গ. Tk.8.80
• ঘ. Tk.9.60

8. The sum of two numbers is 23 and difference is 21. What is the smaller of the two numbers?

• ক. 4
• খ. 3
• গ. 2
• ঘ. 1

9. A man has 72 green marbles and 108 red marbles. He decides to pack them into packets of the same size, each containing either all red or all green marbles. What is the greatest number of marbles he can put in each packet?

• ক. 36
• খ. 24
• গ. 18
• ঘ. None of these

10. A wheel rotates 10 times per minute and moves 20 feet during each rotation. How many feet does the wheel move in 1 hour?

• ক. 1200
• খ. 24
• গ. 12000
• ঘ. 18000

11. 2 bats and 2 balls cost Tk.300. 5 bats and 5 balls cost Tk.750. 3 bats and 3 balls cost--

• ক. Tk.400
• খ. Tk.450
• গ. Tk.500
• ঘ. Tk.550

12. A man invests Tk.900000 in a share earning Tk.9 as divided per share, when a share of face value of Tk.100 is selling for Tk.150. What is his annual income?

• ক. Tk.54000
• খ. Tk.81000
• গ. Tk.15000
• ঘ. Tk.58000

13. The difference between two numbers is 7 and their product is 60, then one of the two numbers must be--

• ক. 4
• খ. 5
• গ. 6
• ঘ. 7

14. If the population of a certain country increases at the rate of one person every 15 seconds, by how many persons does the population increase in 20 minutes?

• ক. 80
• খ. 100
• গ. 150
• ঘ. 240

15. Per column inch (1 column x 1 inch) area newspaper advertisment costs Tk.1200. How much would a "5 columns by 3 inches" newspaper advertisment cost?

• ক. Tk.3600
• খ. Tk.6000
• গ. Tk.9600
• ঘ. Tk.18000

16. A co-operative collected Tk.5000 from its members. If each member contributed at least Tk.240. What is the greatest number of members that the co-operative could have?

• ক. 20
• খ. 21
• গ. 19
• ঘ. 22

17. If the co-operative (from the previous question) has the greatest number of members possible (with a minimum of Tk.240 contribution per member) and all members except one paid exactly Tk.240, then how much did the member who paid higher then the rest pay?

• ক. Tk.200
• খ. Tk.680
• গ. Tk.440
• ঘ. Tk.280

18. A collection of books went on sale and 2/3 of these were sold for Tk.2.30 each. None of the 36 remaining books were sold. What was the total amount received for the books that were sold?

• ক. 180
• খ. 135
• গ. 90
• ঘ. 60

19. 10 men survive 24 days on 15 cans of food. How many cans needed for 8 men to survive 36 days?

• ক. 15
• খ. 16
• গ. 17
• ঘ. 18

20. A manufacturer of jam wants to make a profit of Tk.0.65 each to make first 100 jars and Tk.0.55 to make each jar after the first 100. What price would be charge for 300 jars of jam?

• ক. Tk.75
• খ. Tk.175
• গ. Tk.225
• ঘ. Tk.240

21. A clock falls behind 10 minutes each day. How many days will it take to reach a point where the clock will indicate the correct time?

• ক. 36
• খ. 40
• গ. 72
• ঘ. 90

22. If the product of three consecutive integers is 210, then the sum of integers is--

• ক. 12
• খ. 14
• গ. 15
• ঘ. 18

23. The difference between the number factors of 32 & 64 is:

• ক. 1
• খ. 0
• গ. 3
• ঘ. 2

24. What is the greatest number that divides 84, 144 or 18 without any remainder?

• ক. 24
• খ. 6
• গ. 18
• ঘ. 12

25. Find the smallest number of oranges that can be distributed completely & equally among 4, 6, 10 or 18 children?

• ক. 240
• খ. 180
• গ. 16
• ঘ. 60