931 . A map has a scale of 1cm to 3km, what length on actual ground does a 3cm length on the map represent ?

A. 9km
B. 1km
C. 6km
D. 6cm

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Answer: Option A

Explanation:

Here for each 1 cm of map distance shows 3 km in real distance

so for 3 cm in map distance, the actual distance will be 3*3 = 9 km.

Bangladesh Bank - Assistant Director - 2010

A. 2
B. 21/3
C. 22/3
D. 25/3

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Answer: Option A

Explanation:

5/3 hours = 5 / 3 x 60 = 100 minites

In 100 minutes he repairs 4 cars

In 50 minutes he repairs 2 cars.

933 . a median of a triangle divides it into two ___

A. congruent triangles
B. triangles of equal area
C. isosceles triangle
D. right triangle

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Answer: Option B

Explanation:

ত্রিভুজের মধ্যমা ত্রিভুজকে দুটি সমান ক্ষেত্রফল বিশিষ্ট নতুন ত্রিভুজে বিভক্ত করে

সুতরাং, এখানে triangles of equal area সঠিক

Bangladesh bank - officer ( general) - 27.04.2018

A. 400 kg
B. 560 kg
C. 600 kg
D. 640 kg

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Answer: Option C

Explanation:

ধরি,

18% profit - এ বিক্রি করে x Kg

8% profit এ বিক্রি করে ( 1000 - x) Kg

(1000 - x) × 8/100 + x × 18/100 = 1000 এর 14/100

8000 - 8x + 18x = 14000

10x = 14000 - 8000

x = 6000/10

x = 600.

সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || অফিসার জেনারেল (10-03-2023)

A. 600 kg
B. 560 kg
C. 400 kg
D. 640 kg

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Answer: Option A

Explanation:

ধরি, 18% profit - এ বিক্রি করে x Kg

8% profit এ বিক্রি করে ( 1000 - x) Kg

(1000 - x) × 8/100 + x × 18/100 = 1000 এর 14/100

8000 - 8x + 18x = 14000

10x = 14000 - 8000

x = 6000/10

x = 600

936 . A merchant sells a radio for Tk. 80 and thereby makes a profit of 25% of the cost. What is the ratio of cost to selling price?

A. 4/5
B. 3/4
C. 5/6
D. 2/3

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Answer: Option A

Explanation:

at 25% profit, if cost price = 100, then sell price = 125

now, if sell price = 80, then cost price = (100*80)/125 = 64

so ratio = 64/80 = 4:5

937 . A milkman pays tk. 6.40 per liter of milk. He adds water and sells the mixture at tk. 8per liter. By doing this, he makes 37.5% profit. Find the proportion of water to milk received by the customers?

A. 1 : 12
B. 1 :10
C. 1 : 15
D. 1 :20

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Answer: Option B

Explanation:

938 . A mixture of 20 kg of spirit and water contains 10% water . How much water must be added to mixture to raise the percentage of water to 25%

A. 2 kg
B. 4 kg
C. 5 kg
D. 6 kg

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Answer: Option B

Explanation:

Amount of water in the mixture = 10% of 20 kg = 2 kg

So, amount of spirit = 20 - 2 = 18 kg

Percentage of spirit in new mixture = 100 - 25 = 75%

Now, 75% of mixture = 18 kg

So, 100% of mixture = 18 x 100 / 75 = 24 kg

So, amount of water need to be added = 24 - 20 = 4 kg

সমন্বিত ৭ ব্যাংক ও ১টি আর্থিক | সিনিয়র_অফিসার | 27-11-2021

A. 4
B. 5
C. 8
D. 30

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Answer: Option A

Explanation:

Amount of water in the mixture = 10% of 20 kg = 2 kg

So, amount of spirit = 20 - 2 = 18 kg

Percentage of spirit in new mixture = 100 - 25 = 75%

Now, 75% of mixture = 18 kg

So, 100% of mixture = 18 x 100 / 75 = 24 kg

So, amount of water need to be added = 24 - 20 = 4 kg

940 . A mixture of 20 kg of sprit and water contains 10% water. How much water must she added to mixture to raise the percentage of water to 25%

A. 2
B. 4
C. 5 days
D. 6

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Answer: Option B

Explanation:

Amount of water in the mixture = 10% of 20 kg = 2 kg

So, amount of spirit = 20 - 2 = 18 kg

Percentage of spirit in new mixture = 100 - 25 = 75%

Now, 75% of mixture = 18 kg

So, 100% of mixture = 18 x 100 / 75 = 24 kg

So, amount of water need to be added = 24 - 20 = 4 kg.

Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

A. 10 minutes
B. 12 minutes
C. 11 minutes
D. 21 minutes

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Answer: Option D

Explanation:

Given,

On first minute monkey climb = 2 m

On the second minute it slips = 1 m

Calculation

On first minute monkey climb = 2 m

On the second minute it slips = 1 m

For every two minute,it climbs 1 m

So, average speed = 1 m/2 min

For 10 m, time is taken = 20 min

For the last 2 m jump add 1 min

So time taken = 20 + 1 = 21 min

∴ Monkey takes 21 minutes to reach the top of the pole.

সমন্বিত ৮ ব্যাংক ও ১ টি আর্থিক প্রতিষ্ঠান || অফিসার জেনারেল (10-03-2023)

A. 35 minutes
B. 33 mintutes
C. 37 minutes
D. 40 minutes

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Answer: Option C

Explanation:

A monkey climbs 6 m in 1st minute and slips down 3 m in next minute
i.e. Monkey climbs 3 meters in 2 minutes.
Then he climbs in one minute = 3/2 m.
But in the last minute, he climbs 6 m as he gets on the top so there is no slip.
The time required = 2 × 54/3 + 6/6
= 37 minutes.

সমন্বিত ৬ (ব্যাংক) ও ২ টি আর্থিক প্রতিষ্ঠান - সিনিয়র অফিসার ১০.০৬.২০১৯

A. 19
B. 15
C. 14
D. 33

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Answer: Option C

Explanation:

মনে করি, কন্যার বর্তমান বয়স = x বছর
.:.মাতার বর্তমান বয়স = (x + x)বছর
= 2x বছর
প্রশ্নমতে, 2x = 38
⇒ x = 19
.:. কন্যার বর্তমান বয়স = 19বছর
তাহলে, 5 বছর পূর্বে কন্যার বয়স ছিল = (19 - 5)বছর
= 14 বছর

সমন্বিত ৪ ব্যাংক - সহকারী প্রোগ্রামার - 25.09.2020

A. 4 km/hr
B. 5 km/hr
C. 6 km/hr
D. 10 km/hr

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Answer: Option B

Explanation:

সমন্বিত পাঁচ ব্যাংক || অফিসার ক্যাশ - 06.11.2021

A. 240 km
B. 270 km
C. 300 km
D. 360 km

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Answer: Option D

Explanation:

Time taken by the the motorcyclist = 5 hours

Speed while covering 1/3rd distance of the distance = 60 km/hr

Speed while covering 2/3rd of the distance = 80 km/h

Formula Used:

Time = Distance/Speed

Calculation:

Let the length of the entire journey = 3a

As per the question;

(3a × 1/3)/60 + (3a × 2/3)/80 = 5

বা,a/60 + 2a/80 = 5

বা, (4a + 6a)/240 = 5

বা, 10a/240 = 5

বা, a = 120

বা, 3a = 3 × 120 = 360.

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

931 . A map has a scale of 1cm to 3km, what length on actual ground does a 3cm length on the map represent ?

932 . A mechanic repairs 4 cars in 5/3 hours. How many cars can he repair in 50 minutes?

933 . a median of a triangle divides it into two ___

934 . A merchant has 1000 kg of sugar, part of which he sells at 8% and the remaining at 18% profit. He gains 14% on the whole. Find the quantity of sugar that he sold at 18% profit.

935 . A merchant has 1000 kg of sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on the whole. The quantity profit is

936 . A merchant sells a radio for Tk. 80 and thereby makes a profit of 25% of the cost. What is the ratio of cost to selling price?

937 . A milkman pays tk. 6.40 per liter of milk. He adds water and sells the mixture at tk. 8per liter. By doing this, he makes 37.5% profit. Find the proportion of water to milk received by the customers?

938 . A mixture of 20 kg of spirit and water contains 10% water . How much water must be added to mixture to raise the percentage of water to 25%

939 . A mixture of 20 kg of sprit and water contains 10% water. How much water must be added to this mixture to rais the percentage of water to 25%?

940 . A mixture of 20 kg of sprit and water contains 10% water. How much water must she added to mixture to raise the percentage of water to 25%

941 . A monkey climbs a 12-meters-high slippery pillar. In his first minute, he climbs 2 meters, and in the next minute, he slips one meter down. In this way, how much time will he take to reach the top of the pillar? What is the correct

942 . A monkey climbs a 60 m high pole.s In first minute he climbs 6 m and slips down 3 m in the next minute. How much time is required by it to reach the top?

943 . A mother said to her daughter- " I was as old as you are at present at the time of your birth". If the mother's age is 38 years now, the daughter's is 5 years back was-

944 . A motorboat, whose speed in 15 km/hr in still water goes 30 km downstream and comes back in a total of 4 hours 30 minutes. The speed of the stream (in km/hr) is:

945 . A motorcyclist completes a certain journey in 5 hours. He covers one-third distance at 60 km/hour and the rest 80 km/hour. The length of the journey is-

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