1951 . If length and width of a rectangular plot were each increased by 20%, what would be the percentage increase in the area of the plot?

A. 20%
B. 24%
C. 36%
D. 44%

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Answer: Option D

Explanation:

Short - cut Formula :

A + B + AB/100

20 + 20 ( 20× 20) / 100 = 44.

সমন্বিত ব্যাংক অফিসার (ক্যাশ) || (02-06-2023)

প্রিমিয়াম প্ল্যান: ১ মাস

99 ৳

৩০ দিনের জন্য সকল লাইভ এবং আর্কাইভ মডেল টেস্ট, প্রশ্ন ব্যাংক ও লেকচার শিট সহ অ্যাপ এর প্রিমিয়াম সব এক্সেস পাবেন।

সাবস্ক্রিপশন লিংক

1952 . If m and n are whole numbers such that $m^{n}$ =121, what is the value of ${(m - 1)}^{n - 1}$ ? ..

A. 1000
B. 676
C. 121
D. 10
E. none of these

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Answer: Option A

Explanation:

et's first find the values of m and n from the given information:

m^n = 121

121 is equal to 11^2, so we can rewrite it as:

m^n = 11^2

Now, since m and n are whole numbers, m should be 11, and n should be 2:

m = 11 n = 2

Now, we can calculate (m - n)^(n-1):

(m - n)^(n-1) = (11 - 2)^(2-1) = 9^1 = 9

So, the value of (m - n)^(n-1) is 9, not 1000. Therefore, the correct answer is not 1000; it's 9.

বাংলাদেশ গ্যাস ফিল্ড | সহকারী-ব্যবস্থাপক | 03-12-2021 || 2021

A. if m is odd then pis odd
B. if m is odd p is even
C. if m is even p is even
D. is p is even p is odd

View Answer	Favorite Question

Answer: Option A

Explanation:

Both A and C are correct.
A→ 1+1=2
C→2+2=4

Sonali Bank Ltd. Senior Officer Recruitment 01.06.2018

A. 10/M
B. 100/M
C. 1000/M
D. M

View Answer	Favorite Question

Answer: Option D

Explanation:

m men can do the job in 10 days

1 man can do the job in 10 x m days

10 men can do the job in (10 x m)/10 = m days.

1955 . If m men can do a job in 10 days, how many days it will take for 10 men to complete the job assuming that they work at the same rate?

A. m
B. 10/m
C. 100m
D. 10m

View Answer	Favorite Question

Answer: Option A

Explanation:

m men can do the job in 10 days

1 man can do the job in 10 x m days

10 men can do the job in (10 x m)/10 = m days.

1956 . If m men can do a job in 10 days, how many days will it take for 10 men to complete the job assuming that they work at the same rate?

A. m
B. 10/m
C. 100m
D. 10m

View Answer	Favorite Question

Answer: Option A

Explanation:

m men can do the job in 10 days

1 man can do the job in 10 x m days

10 men can do the job in (10 x m)/10 = m days.

1957 . If machine A polishes x units in 12 minutes and machine B polishes 5x units in 40 minutes, in how many minutes will A and B. working together, polish 50x units?

A. 240
B. 300
C. 350
D. 120

View Answer	Favorite Question

Answer: Option A

Explanation:

ATQ:

x/12 + 5x/40 = 50x/1

or, 10x+15x/120 = 50x/1

So, 240.

সহকারী পরিচালক(AD) -12.11.2021

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

View Answer	Favorite Question

Answer: Option B

Explanation:

Ler, Jamal = x

Mamun = x + 10

2 ( x + 10) = x + 40

x = 20

Now, Mamun is ( 20 + 10) = 30

1959 . If Marie has twice as much money as Curie has, who has three times as much money as Sunny as has, what is the ratio of the amount of money Sunny has to the amount of money Marie has ?

A. 1 : 8
B. 1 : 6
C. 1 : 4
D. 1 : 2
E. 2 : 1

View Answer	Favorite Question

Answer: Option B

Explanation:

Let, Sunny has $ X
:. Curie has $ 3X
:. Marie has $ (3X x 2) or $ 6X
:. The ratio of the amount of money Sunny has to the amount of money Marie has
= X:6X = X/6X = 1/6 = 1:6

Bangladesh Bank - Assistant Director - 2006

A. (P+Q)/PQ days
B. PQ/(P+Q) days
C. (P+Q) days
D. (1/P + 1/Q) days

View Answer	Favorite Question

Answer: Option B

Explanation:

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

A. 12
B. 12mn
C. 12m + 12y

View Answer	Favorite Question

Answer: Option A

Explanation:

mx + ny = 12my

mx + ny/my = 12

mx/my + ny/ my = 12

x/y + n/m = 12

এখানে, ১২ কে ফ্রি করার জন্য my দ্বারা উভয় পক্ষে ভাগ করে দেওয়া হয়েছে। তারপরে mx ও my পাবে এবং ny ও my পাবে তাই দুইটার নিচে দেওয়া হয়েছে এবং m আর m কাটে এবং y আর y কাটে।

1962 . If n and p are both even number, which of the following number must be an odd number?

A. n +2p
B. np + 1
C. n + p
D. 2n + p

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Answer: Option B

Explanation:

Let, n = 3, p = 5

np + 2 = 17

again, n + p = 8

1963 . If n and p are both odd numbers, which of the following must be an even number?

A. np + 2
B. n + p
C. n + p + 1
D. np

View Answer	Favorite Question

Answer: Option B

Explanation:

Bangladesh Bank - Assistant Director - 2009

A. NP
B. 2N + P
C. N + P
D. NP + 2

View Answer	Favorite Question

Answer: Option C

Explanation:

as N and P both are odd numbers,

let, N = 3 and P = 5

so, N + P = 3 + 5 = 8 which is an even number.

so, N + P is even

Sonali- Janata- Agrani &amp- Rupali Bank Ltd. Senior Officer Recruitment 14.03.2008

A. 1
B. 4
C. 7
D. 25
E. none of them

View Answer	Favorite Question

Answer: Option A

Explanation:

1951 . If length and width of a rectangular plot were each increased by 20%, what would be the percentage increase in the area of the plot?

1953 . if m and p are positive integers and (m+p) is even which is the must be true ?

1954 . If M men can do a job in 10 days, how long will it take for 10 men to complete the task, assuming that they work at the same rate?

1955 . If m men can do a job in 10 days, how many days it will take for 10 men to complete the job assuming that they work at the same rate?

1956 . If m men can do a job in 10 days, how many days will it take for 10 men to complete the job assuming that they work at the same rate?

1957 . If machine A polishes x units in 12 minutes and machine B polishes 5x units in 40 minutes, in how many minutes will A and B. working together, polish 50x units?

1958 . If Mamun were twice as old as he is now, he would be 40 years older than Jamal. If Jamal is 10 years younger than Mamun, How old is Mamun?

1959 . If Marie has twice as much money as Curie has, who has three times as much money as Sunny as has, what is the ratio of the amount of money Sunny has to the amount of money Marie has ?

1960 . If Masud can do a job in P days, while Minhaz can do the same job in Q days separately, how long will it take to finish the job if they work together?

1961 . If mx+ny=12my, then x/y+n/m= ?

1962 . If n and p are both even number, which of the following number must be an odd number?

1963 . If n and p are both odd numbers, which of the following must be an even number?

1964 . If N and P are odd numbers then which of the following must be even number?

1965 . If n is a positive integer and k+2=3n, which of the following could be a value of k?

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