Exim Bank Trainee Officer 2015

৬০ টি প্রশ্ন

টপিক তালিকা

একই বিষয়ের সব টপিক

If 33² – 17² = 25k, what is the value of k?

ক) 142/25 খ) 20 গ) 162/25 ঘ) 32

ব্যাখ্যা (Explanation)

332 – 172 = 25k

=> (33 + 17 ) (33 - 17) = 25k

=> 50*16 = 25k

=> k = 50*16/25 =32

If the average of z and x is 35, and the average of x and y is Then z – y = ?

ক) 5 খ) 10 গ) 20 ঘ) 30

ব্যাখ্যা (Explanation)

(z + x)/2 = 35

z + x = 70 .................... (1)

And,

(x + y)/2 = 25

x + y = 50 ................. (2)

(1) - (2), we get,

z - y = 70 -50 = 20

Rakib can complete a task in 30 minutes and together with his brother Momin, he can complete the task in 20 minutes. How long would it take for Momin working alone to complete the task?

ক) 30 minutes খ) 40 minutes গ) 50 minutes ঘ) 60 minutes

ব্যাখ্যা (Explanation)

in 30 minutes, Rakib can complete 1 task

in 1 minute, Rakib can complete 1/30 task

Again,

in 20 minutes, Rakib and Monin can complete 1 task

in 1 minute, Rakib and Monin can complete 1/20 task

Now,

let, monin does x task in 1 minute.

Now,

1/30 + 1/x = 1/20

(x + 30)/30x = 1/20

30x = 20x + 600

30x - 20x = 600

10x = 600

x = 60

Thus,

momin working alone can complete the task in 60 minutes.

What percentage of numbers from 11 to 90 has 0 or 5 in the unit’s digit?

ক) 10% খ) 15% গ) 20% ঘ) 21%

ব্যাখ্যা (Explanation)

15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90 => 16 Numbers

And amount of numbers from11 to 90 = (90 - 11) +1 = 79 + 1 = 80

Percentage of numbers = 16*100/80 = 20%

Hamed is 7 years older than his brother Shaquib, who is twice as old as their younger sister Lopa. If Lopa is 15 years younger than Hamed. Then how old is Shaquib?

ক) 8 years খ) 12 years গ) 16 years ঘ) 20 years

ব্যাখ্যা (Explanation)

Lopa = x

Shaquib = 2x

Hamed = 2x + 7

Now,

A/Q,

2x + 7 - x = 15

x + 7 = 15

x = 15 - 7

x = 8

2x = 2*8 = 16

There are 4 women and 4 men sitting in a waiting room for job interview. If two of the applicants are selected at random, what is the probability that both will be women?

ক) 1/2 খ) 3/7 গ) 3/4 ঘ) 3/14

ব্যাখ্যা (Explanation)

১ম জন women হবার সম্ভাবনা ৪/৮=১/২

১ম জন মহিলা নেবার পর, প্রার্থী ৭ জন ,women ৩ জন

২য় জন মহিলা হবার সম্ভাবনা ৩/৭ জন

১ম ২ জন মহিলা হবার সম্ভাবনা ১/২×৩/৭ জন = ৩/১৪ জন

Which one of the following is the minimum value of the sum of two integers whose product is 36?

ক) 37 খ) 20 গ) 15 ঘ) 12

ব্যাখ্যা (Explanation)

1+ 36 = 37

2 + 18 = 20

3 + 12 =15

4 + 9 = 13

6 + 6 = 12

If the sum of three consecutive integers is less than 75, what is the greatest possible value of the smallest one?

ক) 22 খ) 23 গ) 24 ঘ) 35

ব্যাখ্যা (Explanation)

If sum were 75 the integers would be 24, 25 and 26 so the next lowest sum would be 23 + 24 + 25 ie 72.

The answer is thus 23.

A 12 gallon tub has a faucet that lets water in at a rate of 3 gallons per minute, and has a drain that lets water out at a rate of 5 gallons per minute. If you start with 3 gallons of water in the tub, how long will it take to fill the tub completely?

ক) 6 minutes খ) 7minutes গ) 8 minutes ঘ) 9 minutes

ব্যাখ্যা (Explanation)

12 gallon tub,with 3 gallons of water in the tub: needs {{{9Gal}}} to fill water in at 3 gal/min, and out at a rate of 1.5 gal/min: Net in at {{{1.5gal/min}}} {{{9gal/1.5 (gal/min)}}} = 6 min

প্রথম ৩০টি প্রশ্নের ব্যাখ্যা ওয়েবসাইটে; সবগুলোর সম্পূর্ণ ব্যাখ্যা পেতে অ্যাপ ইন্সটল করুন।

অ্যাপ ইন্সটল করুন

A man rowed 3 miles upstream in 90 minutes. If the river flowed with a current 2 miles per hour, how long did the man’s return trip take?

ক) 30 minutes খ) 60 minutes গ) 90 minutes ঘ) 120 minutes

ব্যাখ্যা (Explanation)

A man rowed 3 miles upstream in 90 minutes Let r represent the rowing r D = rt OR r = D/t (r-2) = 3/1.5 = 2 r-2 = 2 r = 4mi/hr With the current, will travel 6mi/hr {{{ 3mi/6(mi/hr) = .5hr}}} or 30min

If 4y – 3x = 5, what is the smallest integer value of x for which y>100?

ক) 130 খ) 131 গ) 133 ঘ) 395

ব্যাখ্যা (Explanation)

Since 4y - 3x = 5

=>4y = 5 + 3x

=>4y - 5 = 3x

=>3x = 4y - 5

if you look at the equation you will notice that x is directly proportional to y

therefore if we increase the value of y, x is also increases.

If the value of y is smallest then the x is also smallest.

Since y>100

therefore the smallest value of y = 101

therefore the equation is 3x = 4 X 101 - 5

=> 3x = 404 -5

=> x = 399/3

=> x = 133

If x = 4 then -2²^√x +2=?

ক) -14 খ) -8 গ) -2 ঘ) 0

ব্যাখ্যা (Explanation)

-22√x +2

=> -22√4 +2

=> -22*2 +2

=> -24 +2

=> -16 + 2 [Notice that the –ve symbol before( 22√x ) is not inclusive with the number by brackets, thus it won’t count when square rooting ]

=> -14

In a class, 50% of the male students and 2/3 of the female students speak French. If there are ¾ as many girls as boys, what fraction of the entire class speaks French?

ক) 4/7 খ) 3/4 গ) 1/4 ঘ) 2/3

ব্যাখ্যা (Explanation)

x=# of boys in the class y=# of students that speak French

Therefore we are looking for y / (total number in class). But the total number in the class is boys plus girls, so x + 3/4x=7/4x The 3/4 is because they told us there are 3/4 as many girls as boys. So now

y / (total number in class) = y / (7/4x)

Now we know that the number of students that speak French are: 1/2 boys +2/3 girls or 1/2x + 2/3(3/4x) = y = 1/2x + 6/12x = x Therefore y / (7/4x) = x / (7/4)x = 4/7

So the curve ball here is that the number that speak French just happens to be equal to the number of boys in the class, and boys make up 4/7 of the class as well.

A fuel tank is 50% full. If 8 gallons of fuel is removed, then the tank remains 10% full. What is the capacity of the tank in gallons?

ক) 15 খ) 20 গ) 25 ঘ) 30

ব্যাখ্যা (Explanation)

(50 - 10)% = 40% means 8 gallons of fuel

1% means 8/40 gallons of fuel

100% means 8*100/40 gallons of fuel

= 20 gallons of fuel

What is the minimum number of tiles of size 16 by 24 required to form a square by placing the tiles adjacent to one another other?

ক) 6 খ) 8 গ) 11 ঘ) 16

ব্যাখ্যা (Explanation)

LCM of 16,24 = 48 48*48 is the minimum size of square made with 16 by 24 tiles

Number of tiles required = area of square/area of one tile =48*48/(16*24) = 6 tiles

Fahim and Rishad both started at the same time from Point A to Point B at speeds of 52 kmph and 39 kmph respectively on the same road. As soon as Fahim reaches Point B, he turns back , starts toward Point A on the same road, and meets Rishad on the way. How far from Point B do the two of them meet. If the distance between the points is 70 km?

ক) 20 km খ) 30 km গ) 10 km ঘ) 25 km

Computer can be classified as (a/an) ___ device.

ক) Memory খ) Input গ) Output ঘ) Storage

‘MPG’ is a file extension of which type of files?

ক) Audio খ) Image গ) Video ঘ) Flash

ব্যাখ্যা (Explanation)

MPG files are video files in MPEG format, a multi media format standardized by the Moving Picture Experts group (MPEG). There are multiple MPEG formats: MPEG-1, MPEG-2 and MPEG-4.

What is LINUX?

ক) Malware খ) Operating system গ) Application program ঘ) Firmware

নিজের প্রস্তুতি যাচাই করুন — অ্যাপে লাইভ পরীক্ষা দিয়ে মেরিট লিস্টে নিজের অবস্থান দেখুন।

অ্যাপ ইন্সটল করুন

Where is RAM located?

ক) Exparision board খ) Mother board গ) Hard disk ঘ) CPU

ব্যাখ্যা (Explanation)

- RAM is located on the motherboard of a computer.
- The motherboard is the main circuit board in a computer that connects all of the other components together, including the CPU, RAM, hard drive, and graphics card.

Windows media player is an example of ______.