1396 . An express train travelled at an average speed of 100 km/hr, slopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?

A. 6 hrs 21 min
B. 6 hrs 24 min
C. 6 hrs 27 min
D. 6 hrs 30 min

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Answer: Option A

Explanation:

The train travels 100 km in 1 hr

the train travels 1 km in 1/100 hr

the train travels 75 km in ( 75×1)/100 = (75×60)/100 = 45 minutes

To travel 600 km it takes 600/75 = 8 steps

On its way it stop in 7 steps

On its way it stop waste ( 3×7) mints = 21 steps

So total time = (45×8) + 21 minta = (360 + 21) mints = 6 hr 21 mints.

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Bangladesh Bank - Assistant Director - 2014

A. 300
B. 180
C. 240
D. cannot be calculated

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Answer: Option D

Explanation:

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1398 . An industrial loom weaves 0.128 metres of cloth every second. Approximately , how many seconds will it take for the loom to weave 25 metres of cloth?

A. 178
B. 195
C. 204
D. 488
E. None of these

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Answer: Option B

Explanation:

25 ÷ 128 = 195.3125 seconds

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1399 . An institute organized a fair and 1/5 of the girls and 1/8 of the boys of the institute participated in that fair. What fraction of the total number of students of that institute took part in the fair?

A. 2/13
B. 13/40
C. 1/40
D. Can not be calculated
E. None of these

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Answer: Option D

Explanation:

Only fraction of girls and boys are given separately. Not the total no of students or even what is the fraction of the total students that is boys or girls is not given. So can not be calculated.

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1400 . An instrument store gives a 10% discount to all students of the original cost of an instrument. During a school sale an additional 15% is taken off the discounted price. Rahim, a student at the local high school, purchases a flute for Tk 306. How much did it originally cost?

A. Tk 400
B. Tk 408
C. Tk 375
D. Tk 425
E. None of these

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Answer: Option A

Explanation:

Total discount= -10-15+(10×15)/100=|-23.5%|=23.5%

So, current price in percentage=100-23.5%=76.5%

Here,

76.5% is equal to 306 taka

So, 100% is equal to (306×100)/76.5= 400 taka

(ans)

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1401 . An investor earns 3% return on $\frac{1^{t h}}{4}$ of his capital, 5% on $\frac{2^{t h}}{3}$ and 11% on the reminder. What is the average rate of return he earns on his total capital?

A. 5%
B. 5.5%
C. 10%
D. 10.5%

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Answer: Option A

Explanation:

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Janata Bank PLC || Officer (Rural Credit) (27-10-2023) || 2023

A. 11m
B. 17m
C. 34m
D. 68m

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Answer: Option B

Explanation:

given, A+B = 24
B = 8 and A = 16
also given weight = k * length ; k = weight /length
we get
K= 16/34
so for 8 kgs it would be
8 = k * length
8* 34/16 = length 17 m.

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Three Combined Bank Recruitment - Senior Officer 03 .08.2018 ||

A. Tk. 9
B. Tk. 90
C. Tk. 900
D. Tk. 990

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Answer: Option C

Explanation:

Let original cost price is 100%

Item cost peice is 90%

Discount = (100 - 90)% = 10%

ATQ

10% = 90

100% = 900

Ans. 900 TK

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1404 . An item is sold for $65.00, giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% of costs?

A. $55
B. $50
C. $400
D. $140

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Answer: Option A

Explanation:

when sp 130 then cp 100

when sp 1 then cp. 100/130

When Sp 65 then cp 100*65/130

So Cp = 50

Therefore the new retail price = 50 + 50*10% = $55

ans:$55

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1405 . An item is sold for $65.00 giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% of costs?

A. $55
B. $50
C. $400
D. $140
E. None of these

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Answer: Option A

Explanation:

when sp 130 then cp 100

when sp 1 then cp. 100/130

When Sp 65 then cp 100*65/130

So Cp = 50

Therefore the new retail price = 50 + 50*10% = $55

ans:$55

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1406 . Anils height is 20% less then Deepak's. How much is Deepak's height more than Anil's?

A. 20
B. 25
C. 50/3
D. 18

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Answer: Option B

Explanation:

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1407. Answer the question on the basis of the information given below: From 2001 to 2015, there is a projected increase in the number of workers in which of the following of the following categories?

A. Sales
B. Service
C. Clerical
D. a,b&c

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Answer: Option D

Explanation:

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Bangladesh Bank - Officer - 2015

A. 5Y
B. 6Y
C. 8Y
D. 9Y
E. None of these

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Answer: Option D

Explanation:

Hints: আসিফ, আরাফাতকে y টাকা দিলে

আসিফের টাকার পরিমাণ (x - y) এবং

আরাফাতের টাকার পরিমাণ (x + y)

আরাফাত 10 ঘন্টা কাজ করে পায় x + y টাকা

আরাফাত 1 ঘন্টা কাজ করে পায় (x + y)/10 টাকা

অপরদিকে,

আসিফ 8 ঘন্টা কাজ করে পাই x - y টাকা

আসিফ 1 ঘন্টা কাজ করে পাই ( x - y)/8 টাকা

শর্তমত, (x + y)/10 = (x - y)/8

10x - 10y = 8x + 8y

2x = 18y

x = 9y

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1409 . Area of a rectangular field is 400 square meter. If its lenght is 16 meter. What is his circumference of the field?

A. 16
B. 25
C. 41
D. 82

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Answer: Option D

Explanation:

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বাংলাদেশ অর্থনৈতিক অঞ্চল কর্তৃপক্ষ (BEZA) | সহকারী ব্যবস্থাপক | ৩০.১১.২০১৮

A. 72
B. 84
C. 96
D. None

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Answer: Option B

Explanation:

The rate of difference between two is 18
So, 36 KM, is difference in two hours.
The distance covered in 2 hours is 2*72=144
The distance covered in 2 hours is 2*54=108
The total distance at the time of meeting second time is 3 times total distance i.e 3D
3D=144+108
3D=252
D=84

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শিল্প মন্ত্রণালয়ের অধীন বিসিআইসি | সহকারী ব্যবস্থাপক (প্রশাসন) | ০৮.১২.২০১৮

1396 . An express train travelled at an average speed of 100 km/hr, slopping for 3 minutes after every 75 km. How long did it take to reach its destination 600 km from the starting point?

1397 . An increase of Tk.60 in the monthly salary of Madan made it 50% of the monthly salary of Kamal. What is Madan's present monthly salary?

1398 . An industrial loom weaves 0.128 metres of cloth every second. Approximately , how many seconds will it take for the loom to weave 25 metres of cloth?

1399 . An institute organized a fair and 1/5 of the girls and 1/8 of the boys of the institute participated in that fair. What fraction of the total number of students of that institute took part in the fair?

1400 . An instrument store gives a 10% discount to all students of the original cost of an instrument. During a school sale an additional 15% is taken off the discounted price. Rahim, a student at the local high school, purchases a flute for Tk 306. How much did it originally cost?

1402 . An iron rod that weighs 24 kg is cut into two pieces so that one of these pieces weighs 16 kg and is 34m long. If the weight of each piece is proportional to its length. how long is the other piece?

1403 . An item costs 90% of its original price. If Tk. 90 is added to the discount price, the cost of the item will be equal to its original price. What is the original price of the item?

1404 . An item is sold for $65.00, giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% of costs?

1405 . An item is sold for $65.00 giving the retailer a profit of 30% of the cost. What will be the new retail price if the retailer cuts his profit to 10% of costs?

1406 . Anils height is 20% less then Deepak's. How much is Deepak's height more than Anil's?

1409 . Area of a rectangular field is 400 square meter. If its lenght is 16 meter. What is his circumference of the field?

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