811 . A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

A. 3:15
B. 7:15
C. 8:45
D. 9:45

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Answer: Option C

Explanation:

Here, mirror ttime is = 3:15

So, Real time = 11:60-3:15 .(where 11-3 & 60-15)= 8:45

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সমন্বিত ৭ ব্যাংক || অফিসার (ক্যাশ) (24-05-2024)

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812 . A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

A. 3:15
B. 7:15
C. 8:45
D. 9:45

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Answer: Option C

Explanation:

Here, mirror ttime is = 3:15

So, Real time = 11:60-3:15 .(where 11-3 & 60-15)= 8:45.

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সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (সাধারণ) (20-01-2023)

A. 3:15
B. 7:15
C. 8:45
D. 9:45

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Answer: Option C

Explanation:

Here, mirror time is = 3:15

So, Real time = 11:60-3:15 .(where 11-3 & 60-15)= 8:45.

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NRBC Bank PLC || Trainee Assistant Officer (TAO) (26-10-2024) || 2024

A. 24 days
B. 30 days
C. 60 days
D. 60 hours

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Answer: Option C

Explanation:

1 hour = 60 min

24 hour = 1 day

Clock slows down by 1 min in 1 day

So, clock slows down by 60 min in 60 days.

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815 . A cloth merchant has announced 25% rebate in price. If one needs to have a rebate of Tk.40 then how many shirts each costing Tk.32, he should purchage?

A. 10
B. 7
C. 6
D. 5

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Answer: Option D

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816 . A club collected exactly Tk. 599 from its members. If each member contributed at least Tk. 12, what is the largest numbers the club could have?

A. 43
B. 44
C. 49
D. 50

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Answer: Option C

Explanation:

We can find out the largest number of members when everyone is contributing the least amount, which is 12 taka.

So, 599/12≈49

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817 . A club has 3 boys and 5 girl during a membership drive the same number of boys and girl joined the club. How many members does the club has now if the rate of boys to girl is 3:4

A. 12
B. 13
C. 14
D. 15

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Answer: Option C

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818 . 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?

A. 20
B. 21
C. 19
D. 22

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Answer: Option B

Explanation:

If each member contributed the minimum 240 TK, the number of members will be the greatest.

So, the greatest number of members possible = 5000/240 ≈ 20

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819 . A coat was sold for TK. 75. The coat was sold for 150% of the cost of the coat. How much did the coat cost ?

A. TK. 150
B. TK. 45
C. TK. 50
D. TK. 60
E. None of these

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Answer: Option C

Explanation:

Given that, 150% = 75

= > 1 % = 75/150

= > 100% = 75/150 * 100 = 50

therefore, the coat cost = 50 tk.

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820 . A coat was sold for Tk.75. The coat was sold for 150% of the cost of the coat. How much did the coat cost?

A. Tk.150
B. Tk.45
C. Tk.50
D. Tk.60

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Answer: Option C

Explanation:

Let the cost of the coat be X.

Then, 150% of X = 75

or, 150/100 of X = 75

or, X = 75×100/150 = 50 TK

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821 . A coin is thrown 3 times in the air. What is the probability that one head is followed by two tails?

A. $\frac{1}{2}$
B. $\frac{1}{4}$
C. $\frac{1}{8}$
D. $\frac{5}{6}$

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Answer: Option C

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সমন্বিত ৫ ব্যাংক | অফিসার ক্যাশ | 25-03-2022 ||

A. 1/4
B. 1/8
C. 1/16
D. 3/16

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Answer: Option C

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অফিসার (জেনারেল) - 12.11.2021

A. 3
B. 5
C. 7
D. 9

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Answer: Option B

Explanation:

A Collection of 16 coins,each with a face value of either 10 paisa or 25 paisa, has a total face value of Tk. 2.35 How many of the coins have a face value of 25 paisa? We can let the number of 10 - paisa coins = d and the number of 25 - paisa coins = q. We are given that there are 16 total coins; thus, d + q = 16.
We are also given that the total face value isTk.2.35, thus: 0.1d + 0.25q = 2.35
10d + 25q = 235
Isolating d in our first equation, we have d = 16 - q. We can substitute 16 - q for d in our second equation and we have: 10(16 - q) + 25q = 235
160 - 10q + 25q = 235
15q = 75
q = 5
There are 5 coins with a face value of 25 paisa.

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824 . A collection of books went on sale and 2/3 of them was sold for TK. 2.30 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold?

A. 165.6
B. 180
C. 135.6
D. 90

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Answer: Option A

Explanation:

Remaining books = 1 - 2/3 = 1/3

1/3 of the books = 36

So, 2/3 of the books = 36 x (2/3) / (1/3) = 72

Then, total amount received from the sold books = 72 x 2.3 = 165.6 TK

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825 . A collection of books went on sale and 2/3 of these were sold for Tk. 2.30 each. If none of 36 remaining books were sold, what was the total amount received from the number of books sold?

A. 180
B. 135
C. 90
D. 60
E. None of these

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Answer: Option E

Explanation:

Remaining books = 1 - 2/3 = 1/3

1/3 of the books = 36

So, 2/3 of the books = 36 x (2/3) / (1/3) = 72

Then, total amount received from the sold books = 72 x 2.3 = 165.6 TK.

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811 . A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

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812 . A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

813 . A clock seen through a mirror, shows quarter past three. What is the correct time shown by the clock?

814 . A clock slows down one minute every 24 hours. How long will it take to slow down by one hour?

815 . A cloth merchant has announced 25% rebate in price. If one needs to have a rebate of Tk.40 then how many shirts each costing Tk.32, he should purchage?

816 . A club collected exactly Tk. 599 from its members. If each member contributed at least Tk. 12, what is the largest numbers the club could have?

817 . A club has 3 boys and 5 girl during a membership drive the same number of boys and girl joined the club. How many members does the club has now if the rate of boys to girl is 3:4

818 . 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?

819 . A coat was sold for TK. 75. The coat was sold for 150% of the cost of the coat. How much did the coat cost ?

820 . A coat was sold for Tk.75. The coat was sold for 150% of the cost of the coat. How much did the coat cost?

822 . A coin is tossed four times .... What is the probability of getting heard on all tosses?

823 . A collection o 16 coins , each with a face value either 10 paisa or 25 paisa, has a total face value of Tk. 2.35. How many of the coins have a face value of 25 paisa?

824 . A collection of books went on sale and 2/3 of them was sold for TK. 2.30 each. If none of the 36 remaining books were sold, what was the total amount received for the books that were sold?

825 . A collection of books went on sale and 2/3 of these were sold for Tk. 2.30 each. If none of 36 remaining books were sold, what was the total amount received from the number of books sold?

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