1. Find the highest number which can divide 36 and 12, without leaving any remainder ?
 36
 24
 1
 12
4

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Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers.
So,12 is highest number.
Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
2. Two bells ring at an interval of 20 sec and 37 secs. After what least time in seconds, will both the bells ring together ?
 240
 740
 2960
 444
6

View Answer
Solution:
Given
Two bells ring at an interval of 20 to 37 secs
=> When both bells ring together at least time
=> 20 * 37
=> 740 seconds
3. Which number should come in place of the missing Number ? 112, 143, 174, X , 236, 267
 203
 204
 205
 306
11

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Solution:
The given series is  112, 143, 174, X , 236, 267
Consequtive numbers increases by 31
Following this pattern, the Missing Number X should increase by 31 from the previous number.
When we add 31 to the number before X (i.e 174) we get 174+31=205
4. Find the HCF of 36 , 10?
 1
 2
 4
 180
14

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
5. Find the LCM of 37 , 24?
 370
 888
 288
 2660
18

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
6. What should come in place of X in the below number series? 112, 83, 54, X , 4, 33
 25
 27
 24
 22
21

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Solution:
The given series is  112, 83, 54, X , 4, 33
Consequtive numbers decreases by 29
Following this pattern, the Missing Number X should decrease by 29 from the previous number.
When we subract 29 to the number before X (i.e 54) we get 5429=25
7. Find the HCF of 36 , 8?
 4
 1
 8
 72
25

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers.
8. Find the LCM of 37 , 7?
 84
 1036
 296
 259
32

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers.
9. Output of a particular program follows the below pattern. Can you find the Missing number? 112, 141, 170, X , 228, 257
 197
 198
 199
 299
35

View Answer
Solution:
The given series is  112, 141, 170, X , 228, 257
Consequtive numbers increases by 29
Following this pattern, the Missing Number X should increase by 29 from the previous number.
When we add 29 to the number before X (i.e 170) we get 170+29=199
10. Find the HCF of 36 , 6?
 36
 12
 4
 6
40

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer
will be the HIGHEST Number that exactly divides both given numbers.
The HCF is 6
11. Find the LCM of 37 , 5?
 222
 185
 60
 555
42

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
12. In the below given sequence, what should be the Missing number ? 112, 87, 62, X , 12, 13
 36
 37
 39
 38
46

View Answer
Solution:
The given series is  112, 87, 62, X , 12, 13
Consequtive numbers decreases by 25
Following this pattern, the Missing Number X should decrease by 25 from the previous number.
When we subract 25 to the number before X (i.e 62) we get 6225=37
13. Find the HCF of 36 , 22?
 396
 4
 1
 2
52

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
14. Find the LCM of 37 , 3?
 111
 148
 221
 136
53

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.
15. A Computer program gave the following output. Can you predict the Missing number in the computer output ? 112, 137, 162, X , 212, 237
 185
 186
 187
 188
59

View Answer
Solution:
The given series is  112, 137, 162, X , 212, 237
Consequtive numbers increases by 25
Following this pattern, the Missing Number X should increase by 25 from the previous number.
When we add 25 to the number before X (i.e 162) we get 162+25=187
16. Find the HCF of 32 , 14?
 2
 4
 6
 8
61

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers.
If any of the given choices doesn’t divide both the numbers, then you can eliminate that particular choice and move to the next choice.
Answer will be the HIGHEST Number that exactly divides both given numbers.
17.Two bells toll at an interval of 30, 31 seconds. After how many seconds they will ring together ?
 930
 300
 600
 1860
65

View Answer
Solution:
Given:
Two bells ring at an interval of 30 to 31 secs
When both bells ring together at time =30 * 31
= 930 seconds.
18. A professor wrote down the below series in a class room. He wants his students to find the Missing number. Can you solve it ? 112, 91, 70, X , 28, 7
 48
 49
 47
 51
70

View Answer
Solution:
The given series is  112, 91, 70, X , 28, 7
Consequtive numbers decreases by 21
Following this pattern, the Missing Number X should decrease by 21 from the previous number.
When we subract 21 to the number before X (i.e 70) we get 7021 = 49
19. Find the HCF of 32 , 12?
 96
 4
 2
 8
74

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices divides both the numbers. If any of the given choices doesn't divide both the numbers, then you can eliminate that particular choice and move to the next choice. Answer will be the HIGHEST Number that exactly divides both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will exactly divide both the numbers, in that case , please choose the Highest among the numbers.
20. Find the LCM of 31 , 20?
 620
 372
 2480
 200
77

View Answer
Solution:
The fastest way to find the correct answer is by elimination rule :
Check whether each of the given choices is divisble by both the numbers. If any choice doesn't get divided by both the numbers, then you can eliminate that particular choice and move to the next number. Answer will be the Number that is exactly divisble by both given numbers.
Please Note : There may be a scenario when two or more numbers in the choice will be exactly divisible by both the numbers, in that case , please choose the lowest among the numbers.