1636 . For how many years does a person need to invest his Tk.3000 at 7% to earn Tk.420 in simple interest?

A. 1 year
B. 2 years
C. 3 years
D. 4 years

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1637 . For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?

A. 3
B. 7.5
C. 9
D. 12

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

3x + 4y = 12 এবং kx + 12y = 30 দুটি সমীকরণ।

যদি, 3/k = 4/12 হয় তাহলে সমীকরণ জোটটির অসংখ্য সমাধান থাকবে।

এখন, 3/k = 4/12

4k = 12 × 3

k = 36/4

k = 9

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1638 . For what value of x between -4 and 4, inclusive ,is the value of x2 -10x + 16 the greatest?

A. -4
B. -2
D. 2

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1639 . For what value of x is $8^{2 x - 4} = 16^{x} ?$

A. $2$
B. $3$
C. $4$
D. $6$

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Officer (General) |-Sonali | Janata | Bangladesh Krishi_Bangladesh Development bank ২৪.০৫.২০১৯

1640 . For which of the following value of s is $\frac{(50 + 8)}{8}$ an integer?

A. 3
B. 4
C. 9
D. 50

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

সমন্বিত ৯ ব্যাংক | 07-01-2022 ||

A. 1
B. 2
C. 3
D. 4
E. 5

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

এখানে নিঃশেষে বিভাজ্যতা পরীক্ষার সূত্র/নিয়ম ব্যবহার করতে হবে। 
১. দিয়ে যে কোনাে সংখ্যা বিভাজ্য। 
২. সকল জোড় সংখ্যা 2 দ্বারা বিভাজ্য। 
৩. যে সংখ্যার অঙ্কগুলাের সমষ্টি 3 দ্বারা বিভাজ্য সে সংখ্যা 3 দ্বারা বিভাজ্য। 
৪. যে সংখ্যার একক ও দশক স্থানীয় অঙ্কে গঠিত সংখ্যা 4 দ্বারা বিভাজ্য সে সংখ্যা 4 দ্বারা বিভাজ্য। 
৫. যে সংখ্যার শেষ অঙ্ক 0 অথবা 5 সে সংখ্যা 5 দ্বারা বিভাজ্য এই তথ্য জানলে সমস্যাটি মুখে মুখেই solve করা যায়।

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1642 . Form a group of 7 men & 6 women 5 persons are to be selected to from acommittee so that at least 3 men are there on the committee. In how many ways can it be done?

A. 564
B. 645
C. 800
D. 756

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

The number of ways = 7C3 x 6C2 + 7C4 x 6C1 + 7C5 x 6C0 = 525 + 210 + 21 = 756.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1643 . Four litres of milk are to be porued into a 2-litre bottle and a 4-litre bottle . If each bottle is to be filled to the same fraction of its capacity, how many litres of milk should be poured into the 4-litre bottle ?

A. 8/3
B. 7/3
C. 5/2
D. 2/3
E. None of these

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

4/(2+4)=4/6=⅔ Litre

So, milk in 4 litre bottle=4×(⅔)=8/3

(ans).

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1644 . Four litres of milk are to be poured into a 2-litre bottle and a 4-litre bottle. If each bottle is to be filled to the same fraction of its capacity, how many litres of milk should be poured into the 4-litre bottle?

A. 8/3
B. 7/3
C. 5/2
D. 2/3

View Answer	Favorite Question	Report

Answer: Option A

Explanation:

4/(2+4)=4/6=⅔ Litre

So, milk in 4 litre bottle=4×(⅔)=8/3

(ans).

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1645 . Four men and 6 women finish a job in 8 days. While 3 men and 7 women finish it in 10 days. In how many days will 10 wemen take to finish the work together?

A. 32
B. 36
C. 40
D. None

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

ধরি,
১ জন পুরুষ ১ দিনে করে = x পরিমান কাজ
১ জন মহিলা ১ দিনে করে = y পরিমান কাজ
প্রথম শর্তে,
4x + 6y = 1/8........(I)
দ্বিতীয় শর্তে,
3x + 7y = 1/10.......(II)
(I) × 3 এবং (II) × 4 করে পাই,
12x + 18y = 3/8
12x + 28y = 4/10
[ - 10y = 3/8 - 4/10 = (15 - 16)/40 = - 1/40]
10y = 1/40
১০ জন মহিলা ১/৪০ অংশ করে ১ দিনে
১০ জন মহিলা ১ অংশ বা সম্পূর্ণ কাজ করে = ৪০ দিনে

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

শিল্প মন্ত্রণালয়ের অধীন বিসিআইসি | সহকারী ব্যবস্থাপক (প্রশাসন) | ০৮.১২.২০১৮

A. 9,600
B. 9,300
C. 9,000
D. 8,600

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Let, The sum of money = 11x + 9x + 7x + 4x = 31x
Now, ATQ - 4x = 1200
Or, x = 300
So, the sum of money = 31x300 = 9,300 Taka .

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

Bangladesh Bank - Assistant Director - 2001

A. 32 years
B. 36 years
C. 44 years
D. None of these

View Answer	Favorite Question	Report

Answer: Option D

Explanation:

Let the ages of father and son 4 years ago be 3x and x years respectively.

Then, [(3x+4) +4] + [(x +4)+4] = 64
⇔
4x=48
⇔
x=12.

So present age of father is 40 years

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1648 . Four years ago Sumon's age was half of what it will be in eight years. How old is Sumon?

A. 8
B. 12
C. 16
D. none of these

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Let Sumon's age be S.

Four years ago, his age was (S - 4).

After eight years, his age will be (S + 8).

Then, S - 4 = (S + 8)/2

or, 2(S - 4) = S + 8

or, 2S - 8 = S + 8

or, 2S - S = 8 + 8

or, S = 16 years.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1649 . Francis had an average of 75 on her first four Geometry test. After taking the next test her average dropped to 72. How much did she get in fifth test?

A. 58
B. 60
C. 73.5
D. 54

View Answer	Favorite Question	Report

Answer: Option B

Explanation:

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

1650 . Fresh grapes contain 80 percent water while dry grapes contain 10 percent water. If the weight of the dry grapes is 250 kg what is total weight when it was fresh?

A. 1000 kg
B. 1100 kg
C. 1125 kg
D. 1225 kg

View Answer	Favorite Question	Report

Answer: Option C

Explanation:

Quantity of pulp in fresh grapes = Quantity of pulp in dry grapes
= (100 - 10)% of 250 kg
= 90% of 250 kg
= 225 kg
Let the total weight of fresh grapes be $$x$$ kg
Then,
⇒ (100 - 80)% of $$x$$ = 225
⇒ 20% of $$x$$ = 225
⇒ $$\frac{x}{5}$$ = 225
⇒ $$x$$ = 225 × 5
⇒ $$x$$ = 1125.

Wrong Question

Wrong Answer

Wrong Question Spelling

Wrong Answer Spelling

Wrong Explanation

বাংলাদেশ ব্যাংক || সহকারী পরিচালক (AD) (20-10-2023)

1636 . For how many years does a person need to invest his Tk.3000 at 7% to earn Tk.420 in simple interest?

1637 . For what value of 'K' will the pair of equations 3x+4y=12 and kx+12=30 does not have a unique solution ?

1638 . For what value of x between -4 and 4, inclusive ,is the value of x2 -10x + 16 the greatest?

1641 . For which of the following values of n is 100+n/n not an integer?

1642 . Form a group of 7 men & 6 women 5 persons are to be selected to from acommittee so that at least 3 men are there on the committee. In how many ways can it be done?

1643 . Four litres of milk are to be porued into a 2-litre bottle and a 4-litre bottle . If each bottle is to be filled to the same fraction of its capacity, how many litres of milk should be poured into the 4-litre bottle ?

1644 . Four litres of milk are to be poured into a 2-litre bottle and a 4-litre bottle. If each bottle is to be filled to the same fraction of its capacity, how many litres of milk should be poured into the 4-litre bottle?

1645 . Four men and 6 women finish a job in 8 days. While 3 men and 7 women finish it in 10 days. In how many days will 10 wemen take to finish the work together?

1646 . Four students aged 11,9, 7 and 4 share a sum of money in the ratio of their ages . If the youngest student receives TK. 1,200 what is the sum of money ?

1647 . Four years ago, the father's age was three times the age of his son. The total of the ages of the father and the son after four years, will be 64 years. What is the father's age at present?

1648 . Four years ago Sumon's age was half of what it will be in eight years. How old is Sumon?

1649 . Francis had an average of 75 on her first four Geometry test. After taking the next test her average dropped to 72. How much did she get in fifth test?

1650 . Fresh grapes contain 80 percent water while dry grapes contain 10 percent water. If the weight of the dry grapes is 250 kg what is total weight when it was fresh?

কোর্স ক্যাটাগরি

প্রয়োজনীয় লিঙ্ক