hr, he reaches 15 min earlier . The distance he has to travel is __

A. 4.5km
B. 6 km
C. 7.2 km
D. 12 km

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Answer: Option B

Explanation:

Let the time taken to travel at speeds 3 km/h and 4 km/h be t1 and t2 respectively.
So, t1 - t2 = 15 - ( - 15) = 30 minutes = 0.5 h
Now, let the distance travelled be = x km
So, (x / 3) - (x / 4) = 0.5
⇨ x = 6 km.

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Officer (Cash) -Sonali Bank | BD Development | BD Krishi Bank - 12.10.2018

A. 4.5km
B. 6km
C. 7.2km
D. 12km

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Answer: Option B

Explanation:

15+15=30 mins =½ hour

So,

t'-t=1/2

or, d/v'-d/v=1/2

or, d/3-d/4=1/2

or, d=6 km

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অফিসার (ক্যাশ) নিয়োগ পরীক্ষা- ১২-১০-২০১৮ ||

A. 20
B. 25
C. 45
D. 30
E. None of these

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Answer: Option D

Explanation:

75 km/hr means,

Travelling 75 km takes 60 mins

So, Travelling 25 km takes (60×25)/75=20 mins

As he comes back at twice speed so it takes half time and that is 10 mins

So, minutes in total=20+10=30

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1069 . A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?

A. 36 kmph
B. 45 kmph
C. 48 kmph
D. 50 kmph

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Answer: Option D

Explanation:

let, P to Q is x km. Thus he travels 2x km

1st Speed = 40kmph and 2nd speed will be = 40 + 40X50% = 60kmph

Now, time to go P to Q = x/40 and time to come from Q to P is = x/60 and total time taken = x/40 + x/60 = 5x/120 = x/24

Thus, Average speed = 2x/(x/24) = (24X2x)/x = 48kmph

Ans: Average Speed 48km/h

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1070 . A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am' What was the age of the person ?

A. 18 years
B. 20 years
C. 24 years
D. 32 years

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Answer: Option A

Explanation:

ধরি, লেকটির বয়স x বছর

প্রশ্নমতে লোকটির

বয়স = ( x + 3) × 3 - 3 ( x - 3) বছর

= 3x + 9 - 3x + 9

= 18 বছর

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1071 . A Petrol tank now is 1/2 full. After you remove 8 gallons petrol from the 1/2 full tank, the tank is then 1/10 full. What is the capacity in gallons of the tank ?

A. 4
B. 3
C. 20
D. 1

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Answer: Option C

Explanation:

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প্রধান প্রশাসনিক কর্মকর্তার কার্যালয় ( প্রতিরক্ষা মন্ত্রণালয়) সহকারী পরিচালক ০৫.০৪.২০১৯

A. 76
B. 65
C. 38.5
D. 59.5
E. None

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Answer: Option C

Explanation:

Measurements excluding borders are (8.5 - 2×1.5 = 5.5) inches by (10 - 2×1.5 = 7) inches.

So, area of the picture = 5.5×7 = 38.5 in^2

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Probationary Officer | 31.03.2017 ||

A. 2
B. 3
C. 4
D. Can not be calculated
E. None of these

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Answer: Option C

Explanation:

"Rahim spent exactly 38 Tk on both type of fruits. If he bought only one watermelon and used the rest (38 - 5)  =  33 on pineapple, it would not be 'exact' as 33 can not be divided by 7 (the price of one pineapple)
2 watermelon, 4 pineapple  =  2  ×  5  +  4  ×  7  =  38 Tk
3 watermelon, 3 pineapple  =  3  ×  5  +  3  ×  7  =  36 Tk
So, only by buying 4 pineapples and 2 watermelon Rahim can spend exactly Tk 38."

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1074 . A pipe can fill a tank in 64 minutes and another can empty it in 32 minutes. If the tank is already half full and both pipe opened together, the tank will be--

A. filled in 32 minitues
B. emptied in 64 minutes
C. emptied in 32 minutes
D. filled in 64 minutes

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Answer: Option B

Explanation:

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1075 . A pipe of 2 inch diameter fills a water tank in one hour . If the diameter of the pipe is 4 inch in what time will the pipe fill the same tank?

A. 10 minutes
B. 15 minutes
C. 30 minutes
D. 45 minutes

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Answer: Option B

Explanation:

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1076 . A pipe of 2 inch diameter fills a water tank in one hour. If the diameter of the pipe is 4 inch in what time will the pipe fill the same tank?

A. 10 minutes
B. 15 minutes
C. 30 minutes
D. 45 minutes
E. None of these

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Answer: Option B

Explanation:

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1077 . A plane traveling at 600 miles per hour is heading for chittagong airport. At 3:58 pm it is 30 miles from the airport. At what time will arrive at the airport?

A. 4:01 pm
B. 4:02 pm
C. 4:03 pm
D. 3:59 pm

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Answer: Option A

Explanation:

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1078 . A plane traveling at 600 miles per hour is heading for Chittagong airport. At 3.58 pm it was 30 miles from the airport. At what time it will arrive at 600 at the airport?

A. 4.01 pm
B. 4.02 pm
C. 4.18 pm
D. 4.20 pm

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Answer: Option A

Explanation:

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

A. Heptagon
B. Decagon
C. Hexagon
D. Octagon

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Answer: Option B

Explanation:

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সমন্বিত ৫ ব্যাংক || অফিসার (ক্যাশ) (11-03-2022)

A. Tk. 166
B. Tk. 320
C. Tk. 400
D. Tk. 720
E. None of these

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Answer: Option B

Explanation:

Let the investments be A and (7200 - A) respectively.

Interest, I = P n r

Now, A × 1 × 4/100 = (7200 - A) × 1 × 5/100

or, 4A = 5×7200 - 5A

or, 5A + 4A = 36000

or, 9A = 36000

or, A = 4000

So, total income = A × 1 × 4/100 + (7200 - A) × 1 × 5/100

= 4000×4/100 + (7200 - 4000)×5/100 = 160 + 160 = 320 TK

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Jamuna Bank Ltd - Probationary Officer - 2009

1066 . A person travels a certain distance at 3 km / hr and reaches 15 min late. If he travels at 4 km / hr, he reaches 15 min earlier . The distance he has to travel is __

1067 . A person travels a certain distance at km/hr and reaches 15 min late. If he travels at 4 km/hr, he reaches 15 min earlier. The distance he has to travel is

1068 . A person travels a distance of 25 km at a speed of 75 km/hr and then comes back at twice the speed. How many minutes did he take in total?

1069 . A person travels from P to Q at a speed of 40 kmph and returns by increasing his speed by 50%. What is the average speed for both the trips?

1070 . A person was asked to state his age in years. His reply was, 'Take my age three years hence, multiply it by 3 and then subtract three times my age three years ago and you will know how old I am' What was the age of the person ?

1071 . A Petrol tank now is 1/2 full. After you remove 8 gallons petrol from the 1/2 full tank, the tank is then 1/10 full. What is the capacity in gallons of the tank ?

1072 . A picture is copied onto a sheet of paper, which measures 8.5 inches by 10 inches. A border of 1.5 inch is left all around. What is the area , in squar inches , covered by yhe picture ?

1073 . A pineapple costs Tk 7 and a watermelon costs Tk 5. Rahim spent exactly Tk 38 on these fruits. What was the number of pineapples purchased?

1074 . A pipe can fill a tank in 64 minutes and another can empty it in 32 minutes. If the tank is already half full and both pipe opened together, the tank will be--

1075 . A pipe of 2 inch diameter fills a water tank in one hour . If the diameter of the pipe is 4 inch in what time will the pipe fill the same tank?

1076 . A pipe of 2 inch diameter fills a water tank in one hour. If the diameter of the pipe is 4 inch in what time will the pipe fill the same tank?

1077 . A plane traveling at 600 miles per hour is heading for chittagong airport. At 3:58 pm it is 30 miles from the airport. At what time will arrive at the airport?

1078 . A plane traveling at 600 miles per hour is heading for Chittagong airport. At 3.58 pm it was 30 miles from the airport. At what time it will arrive at 600 at the airport?

1079 . A polygon that has 10 sides is called

1080 . A portion of the 7,200 is invested at a 4% annual return , while the remainder is invested at a 5% annual return . If the annual income from both portions is the same, what is the total income from the two investments?

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