Officer (Freedom Fighter) 2019[MCQ]

6. If 2 kg of metal, of which 1/3 is zinc and the rest is copper, be mixed with 3 kg of metal, of which 1/4 is zinc and the rest is copper, then what will be the ratio of zinc to copper in the mixture?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 17:43

2. 13:42

3. 19: 43

4. 15:42

Answer

7. One filling pipe P is three times faster than another filling pipe Q, if P can fill tank in 24 hours, then what is the time taken to completely fill the tank if both the pipes are opened together?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 12 hours

2. 16 hours

3. 18 hours

4. 14 hours

Answer

8. A box contains 4 tennis ball, 6 season and 8 dues balls. 3 balls are randomly drawn from the box. What is the probability that the balls are different?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 2/17

2. 4/17

3. 4/11

4. 6/11

Answer

9. On dividing an individual number by 342, we get 47 as remainder. If the same number is divided by 18, what will be the remainder?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 19

2. 15

3. 13

4. 11

Answer

10. Rahim and Karim donated Tk. 100 each in charity. Karim gives each Tk. 1 more than Rahim and Rahim distributes money to 5 more people than Karim. How many people are there in this charity?

[Officer (Freedom Fighter) 2019[MCQ] : 2019]

1. 45

2. 72

3. 90

4. 60

Answer

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