2971 . The ratio of two numbers is 3:4 and their LCM is 84, find the number-

A. 28
B. 34
C. 82
D. 54

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Answer: Option A

Explanation:

Given:

Ratio of two numbers = 3 : 4

LCM of two numbers = 84

Concept used:

LCM (Least Common Multiple) of 2 numbers is the smallest number which can be divided by both the numbers.

Calculation:

Let the two numbers be 3K and 4K.

LCM = 3 × 4 × K = 12K

বা, 12K = 84

বা, K = 7

Two numbers are

বা, 3K = 3 × 7 = 21 and,

বা, 4K = 4 × 7 = 28

∴ The greatest number of the 2 numbers is 28.

সমন্বিত ৬ ব্যাংক ও আর্থিক প্রতিষ্ঠান - সহকারী প্রোগ্রামার - 18.03.2021

A. 78
B. 80
C. 91
D. 114

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Answer: Option A

Explanation:

2973 . The reflex angle between the hands of a clock at 10.25 is :

A. 180 °
B. 192 . 5 °
C. 195 °
D. 197 . 5 °

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Answer: Option D

Explanation:

Bangladesh Bank - Assistant Director - 2014

A. Tk.110.00
B. Tk.1022.50
C. Tk.948.00
D. Tk.943.50

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Answer: Option C

Explanation:

2975 . The remainder when the positive integer m is divided by n is r. What is the remainder when 2m is divited by 2n?

A. r
B. 2r
C. 2ry
D. m-nr

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Answer: Option B

Explanation:

2976 . The rent of a quest house if Tk. 50 per day for the first three days Tk. 100 per day for the next 5 days and Tk. 300 per day for to the days . The registration fee in the beginning in Tk. 50 . If one has to pay Tk. 1300 for how many days has her availed this facility?

A. 1075
B. 1255
C. 1540
D. 100
E. None of them

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Answer: Option E

Explanation:

First 3 days এর জন্য = 50×3=150
টাকা। পরবর্তী 5 days এর জন্য = (100×5)=500 টাকা।
রেজিস্ট্রেশন ফি সহ প্রদান করে = ( 150 + 500 + 50) = 700 টাকা ।
অষ্টম দিনের পর প্রতিদিনের জন্য 300 টাকা দিতে হয়। আর সে মোট প্রদান করে 1300 টাকা।
Total days = (3 + 5 + 2) = 10 days

2977 . The result of subtraction of two numbers is equal to 3/7 of their sum. If the smaller number is 6, what is the other number?

A. 9
B. 15
C. 18
D. 21

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Answer: Option B

Explanation:

Let the greater number is = x

and the smaller number is = y

According to the question,

x - y = 3/7 (x + y)

or, 7x - 7y = 3x + 3y

or, 7x - 3y = 3y + 7y

or, 4x = 10y

or, 4x = 10*6 [As the smaller number is 6]

or, 4x = 60

or, x = 15

Ans: The greater number is 15

2978 . The retail price of a doll is 40 taka. Amreen got discount of 20% over the retail price and she eventually saved 240 taka on her total purchase of the dolls. How many dolls did she purchase ?

A. 20
B. 24
C. 12
D. 30
E. None of these

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Answer: Option D

Explanation:

Taka saved per doll = 20% of 40 = 8

Number of dolls purchased = 240 / 8 = 30

2979 . The Roman numeral M stands for what ?

A. 50
B. 100
C. 1000
D. None of these

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Answer: Option C

Explanation:

Roman numeral: The common basic symbols are I ( = 1), V ( = 5), X ( = 10), L ( = 50), C ( = 100), D ( = 500), and M ( = 1000). The Roman numerals for one to nine are: I, II, III, IV, V, VI, VII, VIII, IX.

Bangladesh Bank - Assistant Director - 2001

A. 100%
B. 200%
C. 300%
D. 600%
E. None of these

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Answer: Option B

Explanation:

If A's Salary is x,
Then B's Salary is 2x
and C's Salary is 3x
ATQ, 2x + 3x = 6000
বা, 5x = 6000
বা, x = 1200
∴ 3x = 3600
C's Salary more than
that of A = 3600 - 1200
= 2400
Percentage = (2400/1200)×100
=200%

দুর্নীতি দমন কমিশনের সহকারী পরিচালক-১২.০৪.২০১৩

A. 7%
B. 9%
C. 10%
D. None

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Answer: Option C

Explanation:

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

A. Tk. 500
B. Tk. 515
C. Tk. 550
D. Tk. 600

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Answer: Option A

Explanation:

Tax সহ মূল্য 110 টাকা হলে বিক্রয়মূল্য 100 টাকা
∴
,, ,, ,, 616 ,, ,, ,, (100× 616)/110,,
= 560 টাকা
12% লাভে, বিক্রয়মূল্য 112 টাকা হলে ক্রয়মূল্য 100 টাকা
∴ ,, ,, ,, 580 ,, ,, ,, 560× 100112 ,,
= 500 টাকা।

2983 . The sale price of an article including the sales tax is Tk. 616. The rate of sales tax is 10%. If the shopkeepers has made a profit of 12%, then the cost price of the article is :

A. Tk. 500
B. Tk. 515
C. Tk. 550
D. Tk. 600

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Answer: Option A

Explanation:

Hints : Price excluding sales tax. 616 × 100/110 = 560

Cost = 560 × 100/112 = 500

2984 . The sales price of an item including the sales tax is Tk. 616. The tax rate is 10%. If the shopkeeper made a profit of 12%, What was cost price of the item in Tk.?

A. 500
B. 515
C. 550
D. none of these

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Answer: Option A

Explanation:

2985 . The savings of an employee equals income minus expenditure. If their incomes ratio is 1 : 2 : 3 and their expenses ratio is 3 : 2 : 1, then what is the order of the employees A, B and C in the increasing order of the size of their savings?

A. A>B>C
B. A>C>B
C. B>A>C
D. C>B>A

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Answer: Option A

Explanation:

Let's denote the income of employees A, B, and C as IA, IB, and IC, respectively. Similarly, let's denote their expenses as EA, EB, and EC.

According to the given ratios: Income ratio = 1:2:3 Expenses ratio = 3:2:1

Now, let's calculate the savings for each employee:

Savings of A = IA - EA Savings of B = IB - EB Savings of C = IC - EC

Now, let's calculate the savings for each employee using the given ratios:

Income ratio = 1:2:3 Expenses ratio = 3:2:1

Let's assume that the common multiplier for both ratios is "x" (where x is a positive number).

So, the income for A, B, and C would be: IA = 1x IB = 2x IC = 3x

And the expenses for A, B, and C would be: EA = 3x EB = 2x EC = 1x

Now, let's calculate the savings for each employee:

Savings of A = IA - EA = (1x - 3x) = -2x Savings of B = IB - EB = (2x - 2x) = 0 Savings of C = IC - EC = (3x - 1x) = 2x

Now, let's order the employees in increasing order of the size of their savings:

Savings of A = -2x
Savings of B = 0
Savings of C = 2x

So, the correct order of employees in increasing order of the size of their savings is A > B > C.

The correct answer is A > B > C.

2971 . The ratio of two numbers is 3:4 and their LCM is 84, find the number-

2972 . The ration of male students to female students in a class is 13 to 19. If there are 224 people in the class, including one teacher, one administrator, and thirty evaluation, how many people in the class are male students?

2973 . The reflex angle between the hands of a clock at 10.25 is :

2974 . The regular price of a can coca-cola is Tk.15. If the regular price per can is discounted 15% when it is purchased in 24 can cases, what is the price of 74 cans of coca-cola?

2975 . The remainder when the positive integer m is divided by n is r. What is the remainder when 2m is divited by 2n?

2976 . The rent of a quest house if Tk. 50 per day for the first three days Tk. 100 per day for the next 5 days and Tk. 300 per day for to the days . The registration fee in the beginning in Tk. 50 . If one has to pay Tk. 1300 for how many days has her availed this facility?

2977 . The result of subtraction of two numbers is equal to 3/7 of their sum. If the smaller number is 6, what is the other number?

2978 . The retail price of a doll is 40 taka. Amreen got discount of 20% over the retail price and she eventually saved 240 taka on her total purchase of the dolls. How many dolls did she purchase ?

2979 . The Roman numeral M stands for what ?

2980 . The salaries of A, B, and C, are in the ratio of 1 : 2 : 3. The salaries of B and C together is Tk. 6,000. By what percentage is the salary of C more than that of A?

2981 . The salary of X is 30% less than that of Z and the salary of Y is 37% less than that of Z. What percent is the salary of Y less than that of salary X?

2982 . The sale price of an article, including the sales tax is Tk. 616. The rate of sales tax is 10%. If the shopkeeper has made a profit of 12% then the cost price of the article is:

2983 . The sale price of an article including the sales tax is Tk. 616. The rate of sales tax is 10%. If the shopkeepers has made a profit of 12%, then the cost price of the article is :

2984 . The sales price of an item including the sales tax is Tk. 616. The tax rate is 10%. If the shopkeeper made a profit of 12%, What was cost price of the item in Tk.?

2985 . The savings of an employee equals income minus expenditure. If their incomes ratio is 1 : 2 : 3 and their expenses ratio is 3 : 2 : 1, then what is the order of the employees A, B and C in the increasing order of the size of their savings?

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