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বাংলাদেশ ব্যাংক অফিসার প্রশ্ন সমাধান ২০১৮

বাংলাদেশ ব্যাংক ২০১৮
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If the langth of a rectangle is increased by 20% and width is decreased by 20% what is the change in area of rectangle ?

Aunchanged

Bdecreased by 4%

Cincreases by 4%

Dincreases by 5%

উত্তর : B.

decreased by 4%

শেয়ার :

সম্পর্কিত প্রশ্ন সমূহ

১.

If * is defined for all positive real numbers a and b by $ab=\frac{ab}{a+b}$, then $102=?$

ASat May 03 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

BFri May 02 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

D20/3

২.

The dimensions of a box are 2,3 and 4 meters . the cost of painting the outer sides of the box at the rate of tk. 3 per square meter is ___

A156

B120

C136

D160

৩.

In each expression below , N represents a negative integer . Which expression could have a negative value?

AN(square)

B6-N

C[object Object]

D6+N

৪.

If the length of rectangle B and the width of rectangle A is one-half the width of rectangle B, what is the ratio of the area of rectangle A to the area of rectangle B?

ASat Jan 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

BThu Jan 02 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

CWed Jan 01 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

DSat Feb 01 2025 00:00:00 GMT+0000 (Coordinated Universal Time)

৫.

$\log 36/\log 6$ ___

৬.

a median of a triangle divides it into two ___

Acongruent triangles

Btriangles of equal area

Cisosceles triangle

Dright triangle

৭.

Which number logically follows the sequence ? 4 6 9 6 14 6 ……..

B17

C19

D21

৮.

How many cases do you need if you have to pack 112 pairs of shoes into cases that each hold 28 shoes ?

B10

C12

D14

৯.

In a row in the theatre the seats are numbered consecutively from T1 to T50. Sumon is stilling in seat T39 . How many seats are there between them ?

A23

B21

C22

D20

১০.

siddik has a new set of golf clubs . using a club 8,7, and 6 ball travels an average distance of 100 m, 108 m, 114 m, respectively , How far will the ball go if he uses a club 5 ?

A122m

B120m

C118m

D116m