1816 . If an inspector rejects 0.08% of a product as defective, how many units of the product will be examined in order to reject 2?

A. 1500
B. 500
C. 2000
D. 2500

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Answer: Option D

Explanation:

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

A. Equal to x
B. Less than 0
C. Less than x
D. Greater than 0
E. None of these

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Answer: Option B

Explanation:

x - y > x

x = 1 এবং y = - 1 হলে, x - y = 1 - ( - 1) = 2>1

x = 1 এবং y = - 2 হলে, x - y = 1 + 2 = 3 >1

y <0 হলে x - y > x শর্তটি সিদ্ধ হয়।

1818 . If an integer y is subtracted from an integer x, and the result is greater than x, then y must be :

A. Equal to x
B. Less than 0
C. Less than x
D. Greater than 0

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Answer: Option B

Explanation:

x - y > x

x = 1 এবং y = - 1 হলে, x - y = 1 - ( - 1) = 2>1

x = 1 এবং y = - 2 হলে, x - y = 1 + 2 = 3 >1

y <0 হলে x - y > x শর্তটি সিদ্ধ হয়।

1819 . If an integer y is subtracted from an integer x, and the results than x, than y must be___

A. equal to x
B. less than 0
C. less than x
D. greater than 0

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Answer: Option B

Explanation:

প্রশ্নমতে,

x - y > x

ধরি, x = 2, y = - 1

2 - ( - 1) > 2

বা, 3 > 2

Answer : less than 0।

1820 . If an integer Y is subtracted from an integer X and the result is greater than X, then Y must be --

A. Equal to X
B. Less than O
C. Less than X
D. Greater than O

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Answer: Option B

Explanation:

x - y > x

x = 1 এবং y = - 1 হলে, x - y = 1 - ( - 1) = 2>1

x = 1 এবং y = - 2 হলে, x - y = 1 + 2 = 3 >1

y <0 হলে x - y > x শর্তটি সিদ্ধ হয়।

1821 . If An organization increases its staff salary by 25% . By what percent must it now decrease the salary to return to the original amount ?

A. 15
B. 18
C. 20
D. None of these

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Answer: Option C

Explanation:

Let's consider the salary of an officer to be 100.
So, If the salary is increased by 25%, then the new salary - 100 + [100 × (25/100) ] = 100 + 25 = 125
So, his new salary is 125
To make his salary original 25 must be subtracted from 125, then his salary will be 125 - 25 = 100 or original salary.
So, To find the percentage of salary which must be decreased we must find that 25 is what percentage of 125.
So, decrease% = (25/125) × 100 = 1/5 × 100 = 20%
Answer) 20% of his new salary must be deducted so that his salary becomes Original.

Bangladesh Bank - Assistant Director - 2001

A. 1/2
B. 1
C. 1/√3

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Answer: Option B

Explanation:

In an isosceles right triangle, one of the angles is 90 degrees (the right angle), and the other two angles are congruent and each measures 45 degrees.

To find the tangent of angle A (one of the congruent angles), we can use the definition of the tangent function:

tan(A) = Opposite / Adjacent

In this case:

The opposite side to angle A is the side opposite to the 45-degree angle, which is the shorter leg of the right triangle.
The adjacent side to angle A is the side adjacent to angle A, which is also the shorter leg of the right triangle.

Since both the opposite and adjacent sides are the same in an isosceles right triangle, you have:

tan(A) = Opposite / Adjacent = 1 / 1 = 1

So, the tangent of angle A is 1.

সমন্বিত ৭ ব্যাংক || সিনিয়র অফিসার-05-11-2021 ||

A. 3/4
B. 4/5
C. 4/3
D. 25/85
E. None of these

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Answer: Option B

Explanation:

Let, Babu's salary = 100

Then, Anwar's salary = 100+{(25÷100)×100}

=125

So, salary ratio should be = (100÷125)=4/5

1824 . If Arif saved more than Tk. 10 by purchasing a sweater at a 15% discount ,what is the smallest amount the original price of the sweater could be , to the nearest taka?

A. 45
B. 67
C. 75
D. 83

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Answer: Option B

Explanation:

আসল মূল্যের 15% = 10 টাকার বেশি

” “ 100% = 10/15%x100%

= 66 টাকার বেশি

সোয়েটারটির আসল দাম কমপক্ষে 66.66 বা 67 টাকার কাছাকাছি।

1825 . If Arif were 32 years older, he would be three times as old as he is now. How old is Arif?

A. 16
B. 32
C. 8
D. 12

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Answer: Option A

Explanation:

Let his current age be A.

So, A + 32 = 3 x A

or, 2A = 32

A = 16.

1826 . If b < 2 and 2x - 3b = 0, which of the following must be true?

A. x > -3
B. x < 2
C. x = 3
D. x < 3

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Answer: Option D

Explanation:

Given that,

2x - 3b = 0

= > 2x = 3b

= > 2x<(3×2) i.e b<2

x<3 Ans.

1827 . If b < 2 and 2x - 3b = 0,which of the following must be true ?

A. x > -3
B. x < 2
C. x = 3
D. x < 3
E. x > 3

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Answer: Option D

Explanation:

Given that,

2x - 3b = 0

= > 2x = 3b

= > 2x<(3×2) i.e b<2

x<3 Ans.

Bangladesh Bank - Assistant Director - 2009

A. Bashar, three times more
B. Rahim , three times more
C. They both go around 12 times
D. Bashar, eight times more
E. None of these

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Answer: Option B

Explanation:

rounds of bashar at one hr = (4*60)/20 = 12

rounds of rahim at one hr = (3*60)/12 = 15

difference = 15 - 12 = 3,

ans: Rahim, three times

1829 . If both length and width of a rectangular plot for a garden are increased by 20%, What would be the percent increased in the area of the plot?

A. 20%
B. 25%
C. 35%
D. 44%

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Answer: Option D

Explanation:

1830 . If both length and width of rectangular plot a garden are increased by 20%, how many percent of the area of the plot would be increased?

A. 20%
B. 24%
C. 36%
D. None of these

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Answer: Option D

Explanation:

1816 . If an inspector rejects 0.08% of a product as defective, how many units of the product will be examined in order to reject 2?

1817 . If an integer y is subtracted from an integer x, and the result is greater than x, then y must be ---

1818 . If an integer y is subtracted from an integer x, and the result is greater than x, then y must be :

1819 . If an integer y is subtracted from an integer x, and the results than x, than y must be___

1820 . If an integer Y is subtracted from an integer X and the result is greater than X, then Y must be --

1821 . If An organization increases its staff salary by 25% . By what percent must it now decrease the salary to return to the original amount ?

1822 . If angle B of isosceles triangle ABC is a right angle, what is the tangent of angle A?

1823 . If Anwar's salary is 25% greater than that of Babu, what is the ratio of the salary of fBabu and Anwar ?

1824 . If Arif saved more than Tk. 10 by purchasing a sweater at a 15% discount ,what is the smallest amount the original price of the sweater could be , to the nearest taka?

1825 . If Arif were 32 years older, he would be three times as old as he is now. How old is Arif?

1826 . If b < 2 and 2x - 3b = 0, which of the following must be true?

1827 . If b < 2 and 2x - 3b = 0,which of the following must be true ?

1828 . If Bashar can run around a ground four times in 20 minutes and Rahim can run around the same ground three times in 12 minutes, who can run around that ground more times in an hour, and how many times more can he run around ?

1829 . If both length and width of a rectangular plot for a garden are increased by 20%, What would be the percent increased in the area of the plot?

1830 . If both length and width of rectangular plot a garden are increased by 20%, how many percent of the area of the plot would be increased?

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