Instructions: This Monk test contains JK Bank Numbers Problems with answer. This will help you in JK bank exam preparation.
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Results
#1. Which one of the following is not a prime number?
Answer: Option D
Explanation:
#2. (112 x 5^4) = ?
Answer: Option B
Explanation:
| (112 x 54) = 112 x |  |
10 |  |
4 | = | 112 x 104 | = | 1120000 | = 70000 |
| 2 | 24 | 16 |
#3. It is being given that (2^32 + 1) is completely divisible by a whole number. Which of the following numbers is completely divisible by this number?
Answer: Option D
Explanation:
Let 232 = x. Then, (232 1) = (x 1).
Let (x 1) be completely divisible by the natural number N. Then,
(296 1) = [(232)3 1] = (x3 1) = (x 1)(x2 – x 1), which is completely divisible by N, since (x 1) is divisible by N.
#4. What least number must be added to 1056, so that the sum is completely divisible by 23 ?
Answer: Option A
Explanation:
23) 1056 (45
92
---
136
115
---
21
---
Required number = (23 - 21)
= 2.
#5. 1397 x 1397 = ?
Answer: Option A
Explanation:
| 1397 x 1397 | = (1397)2 |
| = (1400 – 3)2 | |
| = (1400)2 (3)2 – (2 x 1400 x 3) | |
| = 1960000 9 – 8400 | |
| = 1960009 – 8400 | |
| = 1951609. |
#6. How many of the following numbers are divisible by 132 ? 264, 396, 462, 792, 968, 2178, 5184, 6336
Answer: Option A
Explanation:
132 = 4 x 3 x 11
So, if the number divisible by all the three number 4, 3 and 11, then the number is divisible by 132 also.
264 
11,3,4 (/)
396 11,3,4 (/)
462 11,3 (X)
792 11,3,4 (/)
968 11,4 (X)
2178 11,3 (X)
5184 3,4 (X)
6336 11,3,4 (/)
Therefore the following numbers are divisible by 132 : 264, 396, 792 and 6336.
Required number of number = 4.
#7. (935421 x 625) = ?
Answer: Option B
Explanation:
| 935421 x 625 = 935421 x 54 = 935421 x | |
10 | |
4 |
| 2 |
| = | 935421 x 104 | = | 9354210000 |
| 24 | 16 |
= 584638125
#8. The largest 4 digit number exactly divisible by 88 is:
| The largest 4 digit number exactly divisible by 88 is: |
|
Answer: Option A Explanation: Largest 4-digit number = 9999
88) 9999 (113
88
----
119
88
----
319
264
---
55
---
Required number = (9999 - 55)
= 9944.
|
#9. Which of the following is a prime number ?
Answer: Option D
Explanation:
#10. What is the unit digit in {(6374)^1793 x (625)^317 x (341^491)}?
Answer: Option A
Explanation:
Unit digit in (6374)1793 = Unit digit in (4)1793
= Unit digit in [(42)896 x 4]
= Unit digit in (6 x 4) = 4
Unit digit in (625)317 = Unit digit in (5)317 = 5
Unit digit in (341)491 = Unit digit in (1)491 = 1
Required digit = Unit digit in (4 x 5 x 1) = 0.
#11. 5358 x 51 = ?
Answer: Option A
Explanation:
| 5358 x 51 | = 5358 x (50 1) |
| = 5358 x 50 5358 x 1 | |
| = 267900 5358 | |
| = 273258. |
#12. The sum of first five prime numbers is:
Answer: Option D
Explanation:
Required sum = (2 3 5 7 11) = 28.
Note: 1 is not a prime number.
Definition: A prime number (or a prime) is a natural number that has exactly two distinct natural number divisors: 1 and itself.
#13. The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and the 15 as remainder. What is the smaller number ?
Answer: Option B
Explanation:
Let the smaller number be x. Then larger number = (x 1365).
x 1365 = 6x 15
5x = 1350
x = 270
Smaller number = 270.
#14. (12)^3 x 6^4 ÷ 432 = ?
Answer: Option A
Explanation:
| Given Exp. = | (12)3 x 64 | = | (12)3 x 64 | = (12)2 x 62 = (72)2 = 5184 |
| 432 | 12 x 62 |
#15. 72519 x 9999 = ?
Answer: Option A
Explanation:
| 72519 x 9999 | = 72519 x (10000 – 1) |
| = 72519 x 10000 – 72519 x 1 | |
| = 725190000 – 72519 | |
| = 725117481. |
#16. If the number 517*324 is completely divisible by 3, then the smallest whole number in the place of * will be:
Answer: Option C
Explanation:
Sum of digits = (5 1 7 x 3 2 4) = (22 x), which must be divisible by 3.
x = 2.
#17. The smallest 3 digit prime number is
Answer: Option A
Explanation:
The smallest 3-digit number is 100, which is divisible by 2.
100 is not a prime number.
√101 < 11 and 101 is not divisible by any of the prime numbers 2, 3, 5, 7, 11.
101 is a prime number.
Hence 101 is the smallest 3-digit prime number.
#18. Which one of the following numbers is exactly divisible by 11?
Answer: Option D
Explanation:
(4 5 2) – (1 6 3) = 1, not divisible by 11.
(2 6 4) – (4 5 2) = 1, not divisible by 11.
(4 6 1) – (2 5 3) = 1, not divisible by 11.
(4 6 1) – (2 5 4) = 0, So, 415624 is divisible by 11.
#19. (?) - 19657 - 33994 = 9999
Answer: Option A
Explanation:
19657 Let x - 53651 = 9999 33994 Then, x = 9999 53651 = 63650 ----- 53651 -----
#20. The sum of first 45 natural numbers is:
Answer: Option A
Explanation:
Let Sn =(1 2 3 … 45). This is an A.P. in which a =1, d =1, n = 45.
| Sn = | n | [2a (n – 1)d] | = | 45 | x [2 x 1 (45 – 1) x 1] | = | |
45 | x 46 | |
= (45 x 23) |
| 2 | 2 | 2 |
= 45 x (20 3)
= 45 x 20 45 x 3
= 900 135
= 1035.
Shorcut Method:
| Sn = | n(n 1) | = | 45(45 1) | = 1035. |
| 2 | 2 |