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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 ?

A.
unchanged
B.
decreased by 4%
C.
increases by 4%
D.
increases by 5%
উত্তর : B.
decreased by 4%

শেয়ার :

সম্পর্কিত প্রশ্ন সমূহ

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 ___

A.
156
B.
120
C.
136
D.
160
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In each expression below , N represents a negative integer . Which expression could have a negative value?

A.
N(square)
B.
6-N
C.
[object Object]
D.
6+N
Show Answer

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?

A.
Sat Jan 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
B.
Thu Jan 02 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
C.
Wed Jan 01 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
D.
Sat Feb 01 2025 00:00:00 GMT+0000 (Coordinated Universal Time)
Show Answer

$\log 36/\log 6$ ___

A.
5
B.
8
C.
3
D.
2
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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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Which number logically follows the sequence ? 4 6 9 6 14 6 ……..

A.
6
B.
17
C.
19
D.
21
Show Answer

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

A.
8
B.
10
C.
12
D.
14
Show Answer

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 ?

A.
23
B.
21
C.
22
D.
20
Show Answer

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 ?

A.
122m
B.
120m
C.
118m
D.
116m
Show Answer

If $1 - 2x \le 3$, then ___

A.
x ≥ -1
B.
x ≤ -1
C.
x ≤ -2
D.
x ≥ -2
Show Answer