Bangladesh Bank - Assistant Director - 2016
মোট প্রশ্ন: ৮৪
পৃষ্ঠা ১ এর ৫পরবর্তী
১
১
How may seconds will a 500 meter long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr ?
ক.
25
খ.✓ সঠিক উত্তর
30
গ.
40
ঘ.
45
ব্যাখ্যা
Here, Train Long is= 500m.
বিষয়: গণিতটপিক: ট্রেন ও গতিবেগ (Train & Speed)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
How may seconds will a 500 meter long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr ?
ক.
25
খ.✓ সঠিক উত্তর
30
গ.
40
ঘ.
45
ব্যাখ্যা
Here, Train Long is= 500m.
বিষয়: গণিতটপিক: ট্রেন ও গতিবেগ (Train & Speed)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
২
২
TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years ?
ক.
TK. 1020.80
খ.
TK. 1025
গ.✓ সঠিক উত্তর
TK. 1052
ঘ.
None of these
ব্যাখ্যা
Correct option is C)
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
TK. 800 becomes TK. 956 in 3 years at a certain rate of simple interest. If the rate of interest is increased by 4%, what amount will TK. 800 become in 3 years ?
ক.
TK. 1020.80
খ.
TK. 1025
গ.✓ সঠিক উত্তর
TK. 1052
ঘ.
None of these
ব্যাখ্যা
Correct option is C)
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৩
৩
The percentage increase in the area of a rectangle , if each of its sides is increased by 20%, is :
ক.
40%
খ.
42%
গ.✓ সঠিক উত্তর
44%
ঘ.
46%
ব্যাখ্যা
Let,
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
The percentage increase in the area of a rectangle , if each of its sides is increased by 20%, is :
ক.
40%
খ.
42%
গ.✓ সঠিক উত্তর
44%
ঘ.
46%
ব্যাখ্যা
Let,
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৪
৪
Cyclone is related to Anticyclone in the same way as Flood is related to ............ ? ...............
ক.
Devastation
খ.
Havoc
গ.
River
ঘ.✓ সঠিক উত্তর
Drought
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Cyclone is related to Anticyclone in the same way as Flood is related to ............ ? ...............
ক.
Devastation
খ.
Havoc
গ.
River
ঘ.✓ সঠিক উত্তর
Drought
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৫
৫
Root : Stem : Branch : ?
ক.
Wood
খ.✓ সঠিক উত্তর
Leaf
গ.
Tree
ঘ.
Fertilizer
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Root : Stem : Branch : ?
ক.
Wood
খ.✓ সঠিক উত্তর
Leaf
গ.
Tree
ঘ.
Fertilizer
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৬
৬
Choose out the odd one.
ক.
IMF
খ.✓ সঠিক উত্তর
SAARC
গ.
UNICEF
ঘ.
WHO
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Choose out the odd one.
ক.
IMF
খ.✓ সঠিক উত্তর
SAARC
গ.
UNICEF
ঘ.
WHO
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৭
৭
Choose the number pair/group which is different from others .
ক.
50-66
খ.
32-48
গ.
64-88
ঘ.✓ সঠিক উত্তর
63-77
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Choose the number pair/group which is different from others .
ক.
50-66
খ.
32-48
গ.
64-88
ঘ.✓ সঠিক উত্তর
63-77
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৮
৮
If A = 26, SUN = 27, then CAT = ?
ক.
24
খ.
27
গ.✓ সঠিক উত্তর
57
ঘ.
58
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
If A = 26, SUN = 27, then CAT = ?
ক.
24
খ.
27
গ.✓ সঠিক উত্তর
57
ঘ.
58
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
৯
৯
How many sons does X have ? I. Q and U are brothers of T. II. R is sister of P and U. III. Rand Tare daughters of X
ক.
Only I and II
খ.
Only II and III
গ.
All I , II and III
ঘ.✓ সঠিক উত্তর
I, II and III together are not sufficient
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
How many sons does X have ? I. Q and U are brothers of T. II. R is sister of P and U. III. Rand Tare daughters of X
ক.
Only I and II
খ.
Only II and III
গ.
All I , II and III
ঘ.✓ সঠিক উত্তর
I, II and III together are not sufficient
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১০
১০
If A + B = 2C and C + D = 2A , then
ক.✓ সঠিক উত্তর
A + C = B + D
খ.
A + C = 2D
গ.
A + D = B + C
ঘ.
A + C = 2B
ব্যাখ্যা
A + B = 2C
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
If A + B = 2C and C + D = 2A , then
ক.✓ সঠিক উত্তর
A + C = B + D
খ.
A + C = 2D
গ.
A + D = B + C
ঘ.
A + C = 2B
ব্যাখ্যা
A + B = 2C
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১১
১১
Arrange the following in a logical order : 1. Euphoria 2. Happiness 3. Ambivalence 4. Ecstasy 5. Pleasure
ক.
1, 4, 2, 5,3
খ.
2,1, 3, 4, 5
গ.✓ সঠিক উত্তর
3, 2, 5, 1, 4
ঘ.
4, 1, 3, 2, 5
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Arrange the following in a logical order : 1. Euphoria 2. Happiness 3. Ambivalence 4. Ecstasy 5. Pleasure
ক.
1, 4, 2, 5,3
খ.
2,1, 3, 4, 5
গ.✓ সঠিক উত্তর
3, 2, 5, 1, 4
ঘ.
4, 1, 3, 2, 5
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১২
১২
In a class of 60, where girls are twice that of boys , Kamal ranked seventeenth from the top . If there are 9 girls ahead of Kamal , how many boys are after him in rank ?
ক.
3
খ.
7
গ.✓ সঠিক উত্তর
12
ঘ.
23
ব্যাখ্যা
Let, No. of boys = x
As per question,
x + 2x = 60
∴ x = 20
∴ No. of boys = 20 and No. of girls = 40
As Kamal ranked 17th from the top, so there are 16 students ahead of him (including 9 girls).
that means, there are 7 boys and 9 girls ahead of Kamal.
Now, till 17th there are (7 boys + Kamal) = 8 boys
So, remaining boys that ranked after Kamal = (20-8) = 12 boys (Ans:)
As per question,
x + 2x = 60
∴ x = 20
∴ No. of boys = 20 and No. of girls = 40
As Kamal ranked 17th from the top, so there are 16 students ahead of him (including 9 girls).
that means, there are 7 boys and 9 girls ahead of Kamal.
Now, till 17th there are (7 boys + Kamal) = 8 boys
So, remaining boys that ranked after Kamal = (20-8) = 12 boys (Ans:)
বিষয়: গণিতটপিক: সম্ভাব্যতা (Probability)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
In a class of 60, where girls are twice that of boys , Kamal ranked seventeenth from the top . If there are 9 girls ahead of Kamal , how many boys are after him in rank ?
ক.
3
খ.
7
গ.✓ সঠিক উত্তর
12
ঘ.
23
ব্যাখ্যা
Let, No. of boys = x
As per question,
x + 2x = 60
∴ x = 20
∴ No. of boys = 20 and No. of girls = 40
As Kamal ranked 17th from the top, so there are 16 students ahead of him (including 9 girls).
that means, there are 7 boys and 9 girls ahead of Kamal.
Now, till 17th there are (7 boys + Kamal) = 8 boys
So, remaining boys that ranked after Kamal = (20-8) = 12 boys (Ans:)
As per question,
x + 2x = 60
∴ x = 20
∴ No. of boys = 20 and No. of girls = 40
As Kamal ranked 17th from the top, so there are 16 students ahead of him (including 9 girls).
that means, there are 7 boys and 9 girls ahead of Kamal.
Now, till 17th there are (7 boys + Kamal) = 8 boys
So, remaining boys that ranked after Kamal = (20-8) = 12 boys (Ans:)
বিষয়: গণিতটপিক: সম্ভাব্যতা (Probability)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৩
১৩
A, B and C are sisters . D is the brother of E . and E is the Daughter of B. How is A related to D ?
ক.
Sister
খ.
Cousin
গ.
Niece
ঘ.✓ সঠিক উত্তর
Aunt
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
A, B and C are sisters . D is the brother of E . and E is the Daughter of B. How is A related to D ?
ক.
Sister
খ.
Cousin
গ.
Niece
ঘ.✓ সঠিক উত্তর
Aunt
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৪
১৪
The smallest 6-digit number exactly divisible by 111 is
ক.
111111
খ.
110011
গ.✓ সঠিক উত্তর
100011
ঘ.
110101
ব্যাখ্যা
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
On dividing 100000 by 111, we get 100 as remainder.
So, the number to be added = (111 - 100) = 11
Hence, the required number = 100011
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
The smallest 6-digit number exactly divisible by 111 is
ক.
111111
খ.
110011
গ.✓ সঠিক উত্তর
100011
ঘ.
110101
ব্যাখ্যা
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
On dividing 100000 by 111, we get 100 as remainder.
So, the number to be added = (111 - 100) = 11
Hence, the required number = 100011
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৫
১৫
The ratio of two numbers is 3:4 and their H.C.F. is 4 . Their L.C.M. is :
ক.
12
খ.
16
গ.
24
ঘ.✓ সঠিক উত্তর
48
ব্যাখ্যা
Let the numbers be 3x and 4x. Then, their H.C.F. = x. So, x = 4
So, the numbers 12 and 16
L.C.M. of 12 and 16 = 48
So, the numbers 12 and 16
L.C.M. of 12 and 16 = 48
বিষয়: গণিতটপিক: অনুপাত-সমানুপাত (Ratio-Proportion)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
The ratio of two numbers is 3:4 and their H.C.F. is 4 . Their L.C.M. is :
ক.
12
খ.
16
গ.
24
ঘ.✓ সঠিক উত্তর
48
ব্যাখ্যা
Let the numbers be 3x and 4x. Then, their H.C.F. = x. So, x = 4
So, the numbers 12 and 16
L.C.M. of 12 and 16 = 48
So, the numbers 12 and 16
L.C.M. of 12 and 16 = 48
বিষয়: গণিতটপিক: অনুপাত-সমানুপাত (Ratio-Proportion)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৬
১৬
What decimal of an hour is a second ?
ক.
0.0025
খ.
0.0256
গ.✓ সঠিক উত্তর
0.00027
ঘ.
0.000126
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
What decimal of an hour is a second ?
ক.
0.0025
খ.
0.0256
গ.✓ সঠিক উত্তর
0.00027
ঘ.
0.000126
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৭
১৭
What mathematical operation should come at the place of '?' in the equation : 2 ? 6 - 12 ÷ 4 + 2 = 11
ক.
+
খ.
-
গ.✓ সঠিক উত্তর
×
ঘ.
÷
ব্যাখ্যা
(2 x 6 ) - (12 ÷ 4 ) + 2 = 11
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
What mathematical operation should come at the place of '?' in the equation : 2 ? 6 - 12 ÷ 4 + 2 = 11
ক.
+
খ.
-
গ.✓ সঠিক উত্তর
×
ঘ.
÷
ব্যাখ্যা
(2 x 6 ) - (12 ÷ 4 ) + 2 = 11
বিষয়: গণিতরেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৮
১৮
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers ?
ক.
2
খ.
5
গ.✓ সঠিক উত্তর
8
ঘ.
None of these
ব্যাখ্যা
Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.
বিষয়: গণিতটপিক: গড় (Average)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers ?
ক.
2
খ.
5
গ.✓ সঠিক উত্তর
8
ঘ.
None of these
ব্যাখ্যা
Let the numbers be x, x + 2, x + 4, x + 6 and x + 8.
বিষয়: গণিতটপিক: গড় (Average)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
১৯
১৯
Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is :
ক.
36
খ.
48
গ.✓ সঠিক উত্তর
56
ঘ.
64
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
Two numbers are such that the ratio between them is 4:7 . If each is increased by 4, the ratio becomes 3:5 . The larger number is :
ক.
36
খ.
48
গ.✓ সঠিক উত্তর
56
ঘ.
64
বিষয়: গণিতটপিক: শতকরা (Percentage)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
২০
২০
A person's present age is two-fifth of the age of his mother. After 8 years , he will be one-half of the age of his mother . How old is the mother at present ?
ক.
32 years
খ.
36 years
গ.✓ সঠিক উত্তর
40 years
ঘ.
48 years
বিষয়: গণিতটপিক: বয়স (Ages)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016
A person's present age is two-fifth of the age of his mother. After 8 years , he will be one-half of the age of his mother . How old is the mother at present ?
ক.
32 years
খ.
36 years
গ.✓ সঠিক উত্তর
40 years
ঘ.
48 years
বিষয়: গণিতটপিক: বয়স (Ages)রেফারেন্স: Bangladesh Bank - Assistant Director - 2016