Aptitude - Number System Online Test, Number System Questions and Answers updated

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.

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

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

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.

Solution: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisible 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 divisible 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.

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 54-29=25

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.

Solution: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisible 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 divisible by both given numbers.

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

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

Solution: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisible 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 divisible 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.

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 subtract 25 to the number before X (i.e 62) we get 62-25=37

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.

Solution: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisible 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 divisible by both given numbers.

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

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.

Solution: Two bells ring at an interval of 30 to 31 secs When both bells ring together at time =30 * 31 = 930 seconds.

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 70-21 = 49

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.

Solution: The fastest way to find the correct answer is by elimination rule : Check whether each of the given choices is divisible 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 divisible by both given numbers.