2626 . Taraq drives from city A to B at 40 km per hour and returns over the same road at 30 km per hour and spends 8 hours away from home including a one-hcur stop for lunch. What is the distance (in km) between city A and city B?

A. 100
B. 120
C. 180
D. none

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Answer: Option B

Explanation:

2627 . Taxi fare is charged at Tk 15 per mile plus Tk 150 for a trip. If the total fare by taxi is Tk 600, then what is the distance covered in miles by the trip?

A. 30
B. 32
C. 20
D. 25
E. None of them

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Answer: Option A

Explanation:

600 - 150 = Tk.450

Distance = 450/15 = 30 mile

2628 . Ten years ago, A was half of B in age. If the ratio of their present age is 3 : 4, what will be the total of their present ages?

A. 20 years
B. 30 years
C. 45 years
D. None of these

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Answer: Option D

Explanation:

Hints: ধরি বর্তমানে তাদের বয়স 3x ও 4x

প্রশ্নমতে, (3x - 10) = 1/2 (4x - 10)

6x - 20 = 4x - 10

2x = 10

x = 5

Total age = 3x + 4x = 7x = 7 × 5 = 35

2629 . Ten years ago, A was half of B in age. If the ratio of their present age is 3 : 4 What will be the total of their present ages?

A. 20years
B. 30years
C. 45years
D. None of these

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Answer: Option D

Explanation:

Let their present ages be 3x and 4x, Then
2(3x-10) = 4x - 10
2x = 10
x = 5
Sum of their present ages = 7x = 35

2630 . Ten years ago, P was half of Q in age. If the ratio of their present ages is 3 : 4 . What will be the total of their present ages?

A. 35
B. 34
C. 45
D. None

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Answer: Option A

Explanation:

According to the problem, 10 years ago, P was half of Q's age. So, the present age of P is 3x = 15 and the present age of Q is 4x = 20. Therefore, the total of their present ages = 15 + 20 = 35. Hence, the correct answer is option A (35).

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

A. 50 And 20 years
B. 49 And 27 years
C. 55 And 25 years
D. 45 And 25 years

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Answer: Option C

Explanation:

প্রধান প্রশাসনিক কর্মকর্তার কার্যালয় ( প্রতিরক্ষা মন্ত্রণালয়) সহকারী পরিচালক ০৫.০৪.২০১৯

A. 30 years , 10 years
B. 45 years , 15 years
C. 21 years , 7 years
D. 60 years , 20 years

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Answer: Option B

Explanation:

Let the ages of A and B be 3x and x, respectively. Then

or
A's age
B's age

Bangladesh Bank - Assistant Director - 2016

A. 2
B. 5
C. 8
D. None of these

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Answer: Option C

Explanation:

Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.

Then [x + (x + 2) + (x + 4) + (x + 6) + (x + 8) ] / 5 = 61.

or 5x + 20 = 305 or x = 57.

So, required difference = (57 + 8) - 57 = 8 .

Bangladesh Bank - Assistant Director - 2016

A. 3400
B. 3600
C. 4000
D. 4400

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Answer: Option C

Explanation:

ধরি, A এর আয় 5x এবং B এর আয় 4x। A এর ব্যায় 3y এবং B এর ব্যায় 2y

প্রশ্নমতে, 5x- 3y = 1600………..(1)

এবং 4x - 2y = 1600………………(2)

(1×2) - ( 2×3) হতে পাই

10x- 6y- 12x+6y=3200-4800

বা, -2x = -1600

বা,x = 800

অতএব, A এর আয় = 5×800=4000 টাকা।

পল্লী কর্ম সহায়ক ফাউন্ডেশনের অ্যাসিসট্যান্ট ম্যানেজার-০৭.০৩.২০১৪

A. 111111
B. 110011
C. 100011
D. 110101

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Answer: Option C

Explanation:

The smallest 6 - digit number is 100000
On dividing 100000 by 111, we get 100 as remainder.
So, the number to be added = (111 - 100) = 11
Hence, the required number = 100011

Bangladesh Bank - Assistant Director - 2016

A. 4
B. 20
C. 30
D. 40

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Answer: Option D

Explanation:

40 isn't a factor of 180.so it's answer

2637 . The 20"-diameter wheels of a car rotates at rate of 24 revolutions per minute, while the 30"-diameter wheels of another car travels at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first?

A. 4 : 3
B. 6 : 5
C. 9 : 8
D. 1 : 1

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Answer: Option C

Explanation:

2638 . The addition of 10 digits is 462. The average of their first four digits is 52 and the average of last 5 digits is 38. What is the fifth digit?

A. 64
B. 60
C. 50
D. 62

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Answer: Option A

Explanation:

Sum of 10 integer is 462. The average of first 4 number is 52 and the average of last 5 number is 38. What is the fifth number ?

Sum of first 4 number = 4 X 52 = 208
Sum of last 5 number = 5 X 38 = 190
So, sum of 9 number = (208 + 190) = 398

So, the 5th number = (462 - 398) = 64 (Ans:)

2639 . The age of 6 boys of a team led by Karim is 8.5 and if Karim is dropped the average age of the remaining boys will be 7.2. What is the age of Karim?

A. 7.8
B. 10.8
C. 12.6
D. 15

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Answer: Option D

Explanation:

মেঘ এর প্রতিশব্দ - কাদম্বিনী, জলধর, জীমৃত, বারিদ, নীরদ, পয়োদ, ঘন, অম্বুদ, তায়দ, পয়োধর, বলাহক, তোয়ধর।

2640 . The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What is the present age of the older person in years?

A. 20
B. 10
C. 30
D. none of these

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Answer: Option C

Explanation:

ধরি, বড় ব্যক্তির বয়স বছর
∴
ছোট ,, ,, (x –16) ,,
According to Question :
(x – 6) = 3(x – 16 – 6)
⇒
x – 6 = 3x – 66
⇒
3x – x = 66 – 6
⇒
2x = 60
∴
x = 30

2626 . Taraq drives from city A to B at 40 km per hour and returns over the same road at 30 km per hour and spends 8 hours away from home including a one-hcur stop for lunch. What is the distance (in km) between city A and city B?

2627 . Taxi fare is charged at Tk 15 per mile plus Tk 150 for a trip. If the total fare by taxi is Tk 600, then what is the distance covered in miles by the trip?

2628 . Ten years ago, A was half of B in age. If the ratio of their present age is 3 : 4, what will be the total of their present ages?

2629 . Ten years ago, A was half of B in age. If the ratio of their present age is 3 : 4 What will be the total of their present ages?

2630 . Ten years ago, P was half of Q in age. If the ratio of their present ages is 3 : 4 . What will be the total of their present ages?

2631 . Ten years before , the ratio of the ages between father and son was 3 : 1 and 5 years after it would be 2 :1 . What are their current ages?

2632 . The ages of A and B are in the ratio 3:1 . Fifteen years hence , the ratio will be 2:1 . Their present ages are :

2633 . The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?

2634 . The ratios of incomes of A and B is 5:4 and the ratio of their expenditures is 3:2. If at the end of the year each save tk 1600,then the income of A is:

2635 . The smallest 6-digit number exactly divisible by 111 is

2636 . The 180 students in a group are to be seated in rows so that there are an equal number of students in each row. Each of the following could be the number of rows except--

2637 . The 20"-diameter wheels of a car rotates at rate of 24 revolutions per minute, while the 30"-diameter wheels of another car travels at a rate of 18 revolutions per minute. What is the ratio of the speed of the second car to that of the first?

2638 . The addition of 10 digits is 462. The average of their first four digits is 52 and the average of last 5 digits is 38. What is the fifth digit?

2639 . The age of 6 boys of a team led by Karim is 8.5 and if Karim is dropped the average age of the remaining boys will be 7.2. What is the age of Karim?

2640 . The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What is the present age of the older person in years?

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