91 . (8787+6161-28761) = ?

A. 676
B. 196
C. 496
D. 298

View Answer	Favorite Question

Answer: Option A

Explanation:

(87)²-2×87×61+(61)²

=(87-61)²

=26²

=676

(ans)

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

92 . (x × x2 × x3 × x4 × x5) ÷ x8 = ?

A. x6
B. x7
C. x3
D. x9

View Answer	Favorite Question

Answer: Option B

Explanation:

93 . (xl - m)l + m × (xm - n)m + n × (xn - l)n + l

B. 1
C. 4
D. 2

View Answer	Favorite Question

Answer: Option B

Explanation:

94 . (√3.√5)4 =?

A. 15
B. 225
C. 60
D. 30

View Answer	Favorite Question

Answer: Option B

Explanation:

ব্যাখ্যা: (√3.√5)4=(√3)4.(√5)4=32.52=225

95 . (a+b)(a2−ab+b2) =?

A. a 3 − b 3
B. a 3 + b 3
C. a 6 − b 6
D. a 6 + b 6

View Answer	Favorite Question

Answer: Option B

Explanation:

96 . (x+1)+(x+2)+(x+3)=?

A. x+6
B. x 3
C. 2x+6
D. 3x+6

View Answer	Favorite Question

Answer: Option D

Explanation:

(x + 1) + (x + 2) + (x + 3)

= x + 1 + x + 2 + x + 3

= 3x + 6

বিমান_বাংলাদেশ এয়ারলাইনস | গ্রাউন্ড সার্ভিস অ্যাসিস্ট্যান্ট | 23-04-2022

B. 1/2
C. 1/4
D. 2

View Answer	Favorite Question

Answer: Option B

Explanation:

98 . (√7 + √7)2 =

A. 98
B. 49
C. 28
D. 21
E. 14

View Answer	Favorite Question

Answer: Option C

Explanation:

99 . 0.1×0.2×0.3×0.4=?

A. 0.24
B. .0024
C. .3
D. .3

View Answer	Favorite Question

Answer: Option B

Explanation:

100 . 13x+5>14+3x+xy+y ..

A. 54
B. 15
C. 74
D. 85

View Answer	Favorite Question

Answer: Option C

Explanation:

101 . 3.002/2.002 =?

A. 1.05
B. 1.501015
C. 1.5
D. 1.5015
E. None of them

View Answer	Favorite Question

Answer: Option C

Explanation:

102 . 30 pens and 75 pencils altogether were purchased for Tk. 510 . If the average price of a pencil was Tk. 2 , what was the average price of a pen ?

A. Tk. 9
B. Tk. 10
C. Tk. 11
D. Tk. 12

View Answer	Favorite Question

Answer: Option D

Explanation:

According to the question,
30 pens + 75 pencils = Tk. 510
Average price of a pencil = Tk. 2 Price of 75 pencils = 2 × 75 = Tk. 150 ∴ Price of 30 pens = 510 - 150 = Tk. 360 ∴ Average price of pen = 360/30 = Tk. 12

Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

A. 7:5
B. 4:3
C. 4:7
D. 5:7
E. 3:4

View Answer	Favorite Question

Answer: Option D

Explanation:

Let, Tahias income = x and

Nonas income = y

According to question

35% of x = 25% of y

35x/100 = 25y/100

35x = 25y

x/y = 25/35

x : y = 5 : 7

Bangladesh Bank - Assistant Director - 2013 ||

A. 10
B. 13
C. 14
D. 15

View Answer	Favorite Question

Answer: Option B

Explanation:

rrange the 4 values in ascending order: {4, 10, 16, 26}
Since we have an EVEN number of values, the median will be the average of the 2 middlemost values.

So, the median = (10 + 16)2
= 26/2
= 13

Answer: B

সমন্বিত ৯ ব্যাংক | 07-01-2022 ||

A. 5:6
B. 7:3
C. 10:3
D. 11:7

View Answer	Favorite Question

Answer: Option C

Explanation:

মনেকরি,
5 বছর পূর্বে পিতার বয়স = 5x বছর
এবং পুত্রের বয়স = x বছর
.:. বর্তমানে পিতার বয়স = (5x + 5) বছর
বর্তমানে পুত্রের বয়স = (x + 5) বছর
প্রশ্নমতে, 5x + 5 + 2 = 3 (x + 5 + 2)
⇒ 5x + 7 = 3(x + 7)
⇒ 5x + 7 = 3x + 21
⇒ 2x = 14
⇒x = 7
.:. বর্তমানে পিতার বয়স 5 × 7 + 5 = 40 বছর
বর্তমানে পুত্রের বয়স = 7 + 5 = 12 বছর
.:. পিতা ও পুত্র = 40 : 12 = 10 : 3

জাতীয় নিরাপত্তা গোয়েন্দা সংস্থা-(NSI) Assistant Director- Research officer &amp- Assistant Programmer-০৮/১০/২০২১

91 . (8787+6161-28761) = ?

92 . (x × x2 × x3 × x4 × x5) ÷ x8 = ?

93 . (xl - m)l + m × (xm - n)m + n × (xn - l)n + l

94 . (√3.√5)4 =?

95 . (a+b)(a2−ab+b2) =?

96 . (x+1)+(x+2)+(x+3)=?

(x + 1) + (x + 2) + (x + 3)

97 . (xa/xb)a + b × (xb/xc)b + c + 2(xa.xc)a - c

98 . (√7 + √7)2 =

99 . 0.1×0.2×0.3×0.4=?

101 . 3.002/2.002 =?

102 . 30 pens and 75 pencils altogether were purchased for Tk. 510 . If the average price of a pencil was Tk. 2 , what was the average price of a pen ?

103 . 35% of Tahia's income is equal to 25% of Nona's income . The ratio of Tahia's income to Noria's income is :

104 . 4, 26, 16 what is the median of the numbers shown?

105 . 5 years ago the ration of father's age to son's age was 5:1 and 2 years later father's age will be 3 times his sons's age. What is ration of their present age?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক

91 . (87*87+61*61-2*87*61) = ?

92 . (x × x2 × x3 × x4 × x5) ÷ x8 = ?

93 . (xl - m)l + m × (xm - n)m + n × (xn - l)n + l

94 . (√3.√5)4 =?

95 . (a+b)(a2−ab+b2) =?

96 . (x+1)+(x+2)+(x+3)=?

(x + 1) + (x + 2) + (x + 3)

97 . (xa/xb)a + b × (xb/xc)b + c + 2(xa.xc)a - c

98 . (√7 + √7)2 =

99 . 0.1×0.2×0.3×0.4=?

101 . 3.002/2.002 =?

102 . 30 pens and 75 pencils altogether were purchased for Tk. 510 . If the average price of a pencil was Tk. 2 , what was the average price of a pen ?

103 . 35% of Tahia's income is equal to 25% of Nona's income . The ratio of Tahia's income to Noria's income is :

104 . 4, 26, 16 what is the median of the numbers shown?

105 . 5 years ago the ration of father's age to son's age was 5:1 and 2 years later father's age will be 3 times his sons's age. What is ration of their present age?

91 . (8787+6161-28761) = ?