Inevitably
an
origins
unknown
survive
by
shade
the
that
money
what
is
It
the
mountaineers
highest
memento
epitaph
elegy
gift
Heaven
platoon
Cosmos
Utopia
Reporter
Spokesman
Alien
Supporter
ascend:flight
proliferate:number
bend : flexibility
cool : temperature
marginal : unique
perceptible : obvious
apparent : real
peripheral : central
hero : cynical
martyr : impatient
philanthropist : selfish
agnostic : intuitive
the cost of diamonds
qualities affecting diamond values
how to juige an expensive diamond
buying diamonds for jewelry
It has 100 points
It weight an ounce
It costs twice as much as a smaller one
It has the same quality as a half - carat diamond
good for jewelry
good for investment
very colorful
deep yellow
is invisible to the unaided eye
affects the diamond's brilliance
has spots, flaws, and blemishes
is determined by imperfections
perfection
very slight imperfection
slight imperfection
imperfection
2: 5
2 : 1
1 : 2
2 : 3
8
12
15
13
প্রশ্নঃ If the average of 4, 5, 6 and P is 7, what is the value of P?
বর্ণনাঃ
4 + 5 + 6 + p = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>4</mn><mo>×</mo><mn>7</mn></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> p = 20 - 4 - 5 - 6
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> p = 13
1/4 -y
4+y
1/4 +y
4-y
প্রশ্নঃ If 1/x +y =4 , then x =?
বর্ণনাঃ
<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mrow><mi>x</mi><mo>+</mo><mi>y</mi></mrow></mfrac><mo>=</mo><mn>4</mn></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> 4x + 4y = 1
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> 4x = 1 - 4y
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> x = <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>1</mn><mo>-</mo><mn>4</mn><mi>y</mi></mrow><mn>4</mn></mfrac></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> x = <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mn>1</mn><mn>4</mn></mfrac><mo>-</mo><mi>y</mi></math>
3 : 7
2 :7
4 : 21
4 : 9
প্রশ্নঃ If P :Q =3:2 , P : R= 2: 7 , then what is the value of Q : R?
বর্ণনাঃ
Q : P = 2 : 3 = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mo>×</mo><mn>2</mn><mo>:</mo><mn>3</mn><mo>×</mo><mn>2</mn></math> = 4 : 6
P : R = 2 : 7 = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><mo>×</mo><mn>3</mn><mo>:</mo><mn>3</mn><mo>×</mo><mn>3</mn></math> = 6 : 21
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> Q : P : R = 4 : 6 : 21
So, Q : R = 4 : 21
1
root 2
2
4
প্রশ্নঃ If a2 + b2 = 10 and a2 -b2 =8, what is the value of ab?
বর্ণনাঃ
<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>a</mi><mn>2</mn></msup><mo>+</mo><msup><mi>b</mi><mn>2</mn></msup><mo>=</mo><mn>10</mn><mo>;</mo><msup><mi>a</mi><mn>2</mn></msup><mo>-</mo><msup><mi>b</mi><mn>2</mn></msup><mo>=</mo><mn>8</mn></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>2</mn><msup><mi>a</mi><mn>2</mn></msup></math> = 18;<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>a</mi><mn>2</mn></msup></math> = 9 <math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> a = 3
2<math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>b</mi><mn>2</mn></msup></math> = 2;b = 1
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>∴</mo></math> ab = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>3</mn><mo>×</mo><mn>1</mn></math> = 3
35 degree
40 degree
45 degree
60 degree
প্রশ্নঃ In the triangle beside, what is the value of X?
বর্ণনাঃ
<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>4</mn><mi>x</mi><mo>+</mo><mn>40</mn><mo>°</mo><mo>=</mo><mn>180</mn><mo>°</mo></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>180</mn><mo>°</mo></math>
<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>⇒</mo></math> x = <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>35</mn><mo>°</mo></math>
50
64
72
86
প্রশ্নঃ What is the volume of a cube whose surface area is 96 ?
বর্ণনাঃ
Let, x be the side of the cube.
Then <math xmlns="http://www.w3.org/1998/Math/MathML"><mn>6</mn><msup><mi>x</mi><mn>2</mn></msup><mo>=</mo><mn>96</mn><mo>⇒</mo><msup><mi>x</mi><mn>2</mn></msup><mo>=</mo><mn>16</mn><mo>⇒</mo><mi>x</mi><mo>=</mo><mn>4</mn></math>
hence the volume is = <math xmlns="http://www.w3.org/1998/Math/MathML"><msup><mi>x</mi><mn>3</mn></msup><mo>=</mo><msup><mn>4</mn><mn>3</mn></msup></math> = 64
1/2
2/3
3/4
1/4
প্রশ্নঃ Suppose X =1/3 y , y=2/3 r and r = 3/4 s, what would be the value of y as a fraction a of s?
বর্ণনাঃ
y= <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mn>2</mn><mn>3</mn></mfrac><mi>r</mi><mo>=</mo><mfrac><mn>2</mn><mn>3</mn></mfrac><mo>×</mo><mfrac><mn>3</mn><mn>4</mn></mfrac><mi>s</mi><mo>=</mo><mfrac><mn>1</mn><mn>2</mn></mfrac><mi>s</mi></math>
7 : 15
15 : 23
17 : 25
21 : 29
20,000
22,000
25,000
27,000
প্রশ্নঃ Mr. Selim sold his cow of for TK. 30,000 at a 20% gain . Find the cost price .
বর্ণনাঃ
C.P = <math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>30</mn><mo>,</mo><mn>000</mn></mrow><mrow><mn>1</mn><mo>.</mo><mn>20</mn></mrow></mfrac></math> = 25,000
বিষয়ভিত্তিক সমাধান
প্রতিষ্ঠানভিত্তিক সমাধান
গুরুত্বপূর্ণ লিংক
