2881 . Six years ago, Hena was 1/4th of the age she will be after 12 years from now. How old is she now?

A. 6 years
B. 8 years
C. 12 years
D. 24 years

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Answer: Option C

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2882 . Six years ago Anita was P times as old as Ben was. If Anita is now 17 years old, how old is Ben now in terms of P?

A. $\frac{11}{p} + 6$
B. $\frac{p}{11} + 6$
C. $17 - \frac{p}{6}$
D. $\frac{17}{p}$

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Answer: Option A

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

A. 30
B. 40
C. 35
D. 45

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Answer: Option C

Explanation:

Let the present age of son and his father be S and 5S respectively. Six years from now, their ages will be (S + 6) and (5S + 6) respectively.

So, S + 6 + 5S + 6 = 54

or, 6S + 12 = 54

or, 6S = 54 - 12

or, 6S = 42

or, S = 42/6 = 7

So, present age of the father = 5 × 7 = 35 years

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2884 . Sixty-five percent of a number is 21 less than; four-fifth of that number.What is the number?

A. 140
B. 150
C. 160
D. None of these

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Answer: Option A

Explanation:

Hints: Let, the number is x

65% of x is = 65x/ 100 = 13x / 20

According to condition

13x/20 = 4x/5 - 21

4x/5 - 13x/20 = 21

(16x - 13x) /20 = 21

3x = 420

x = 140

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Bangladesh Bank - Assistant Director - 2014

A. x = 16
B. x = -16
C. x = 8
D. x = 5

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Answer: Option C

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2886 . Solve the equation $2^{2 x + 1} + 4^{x} = 48$

A. $1$
B. $2$
C. $3$
D. $4$

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Answer: Option B

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Uttara Bank PLC || Probationary Officer (09-11-2024) || 2024

A. 20%
B. 30%
C. 40%
D. 50%

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Answer: Option D

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2888 . Some marbles are divided between two brothers, Lipu and Tipu in a ratio of 15.8 and the difference in the number of marbles they get is 14. How many marbles did Tipu get?

A. 14
B. 5
C. 10
D. 16
E. None of these

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Answer: Option D

Explanation:

15x - 8x = 14

x = 2

8x = 16

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2889 . Some persons can do a pice of work in 12 days. Two times the number of such persons will do half of that work in:

A. 6 days
B. 4 days
C. 3 days
D. 12 days

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Answer: Option C

Explanation:

Hints: এই গণিত টি ঐকিক নিয়মে করা যায়। কিন্তু চিম্তা করলে আরও দ্রুত হবে। দুইজন মানুষ কাজটি অর্ধেক সময়ে অর্থাৎ ৬ দিনে করবে।

আবার সেই কাজের ও অর্ধেক কাজ করবে আরও অর্ধেক সময়ে অর্থাৎ ৩ দিনে।

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2890 . Son's age is now one-third of father's age. In twelve years from now son's age will be one half of the father's age . What is the son's age in years now ?

A. 6
B. 10
C. 24
D. 12

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Answer: Option D

Explanation:

x, 3x

2( x + 12) = 3x + 12

3x - 2x = 24 - 12

x = 12

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2891 . Speed of a boat in standing water is 10 km/h and the speed of the stream is 2 km/h. A man rows to a place at a distance of 48 km and comes back to the starting point. What will be the total time taken by him?

A. 10
B. 12
C. 6
D. 4

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Answer: Option A

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2892. Square ABCD is inscribed in a circle. whose radius is 4cm. Calculate the area of the square.

A. 16
B. 32
C. 48
D. None

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Answer: Option B

Explanation:

Radius r = 4cm

So, 2r= 8cm

a= 2r= 8cm

Area of the square= a^2 = (8)^2 = 64

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সমন্বিত ১০ ব্যাংক ও আর্থিক প্রতিষ্ঠান || সিনিয়র অফিসার (10-11-2023)

A. TK. 3,750
B. TK. 5,200
C. TK. 5,750
D. TK. 6,250
E. None of these

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Answer: Option D

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2894 . Starting from point A, Kasshem walked 300 meters towards North to B and then walksd another 400 meters towards East to C. What is the shortest distance between C and A?

A. 700
B. 100
C. 500
D. cannot be calculated

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Answer: Option C

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2895 . Starting from Town S, Mr. Ahsan drove straight East for 3 kms, then he turned left and drove straight North for 4 kms and stopped at Town T. What is the straight-line distance from Town S to Town T?

A. √7 kms
B. 5 kms
C. 8 kms
D. 2√3 kms

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Answer: Option B

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2881 . Six years ago, Hena was 1/4th of the age she will be after 12 years from now. How old is she now?

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2883 . Six years from now the combined age of father and son will be 54. If currently son is 5 times younger than his father then what is the present age of the father?

2884 . Sixty-five percent of a number is 21 less than; four-fifth of that number.What is the number?

2885 . Slove for x if 16x - 4 = 68 + 7x

2887 . Some mangoes are brought at a rate of 3 per taka and them sold them at the rate of 2 per taka. what will be the percentage of profit.

2888 . Some marbles are divided between two brothers, Lipu and Tipu in a ratio of 15.8 and the difference in the number of marbles they get is 14. How many marbles did Tipu get?

2889 . Some persons can do a pice of work in 12 days. Two times the number of such persons will do half of that work in:

2890 . Son's age is now one-third of father's age. In twelve years from now son's age will be one half of the father's age . What is the son's age in years now ?

2891 . Speed of a boat in standing water is 10 km/h and the speed of the stream is 2 km/h. A man rows to a place at a distance of 48 km and comes back to the starting point. What will be the total time taken by him?

2894 . Starting from point A, Kasshem walked 300 meters towards North to B and then walksd another 400 meters towards East to C. What is the shortest distance between C and A?

2895 . Starting from Town S, Mr. Ahsan drove straight East for 3 kms, then he turned left and drove straight North for 4 kms and stopped at Town T. What is the straight-line distance from Town S to Town T?

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