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Number System

Number System
Supply the missing figure : 2, 6, 12, 20, 30 ... 56

41
40
42
39

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

42

Number System
What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12

2
3
9
7

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

9

Number System
A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17?

9
5
11
10

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

221 + 43 = 264/17 = 9 (Remainder)

Number System
The difference between a two-digit number and the number obtained by interchanging the two digits is 63. Which is the smaller of the two numbers?

92
70
29
Cannot be determined

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let the ten's digit be x and units digit by y.Then,(10x + y) - (10y + x) = 639(x - y) = 63x - y = 7Thus, none of the numbers can be determined.

Number System
What should be the least number to be added to the 51234 number to make it divisible by 9?

5
3
4
6

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

The least number to be added to the numbers to make them divisible by 9 is equal to the difference of the least multiple of 9 greater than the sum of the digits and sum of the digits.Sum of digits = 15.Nearest multiple of 9 greater than sum of digits = 18.Hence 3 has to be added.

Number System
What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4

38
36
37
39

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37  and 37/7.4 = 5

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