Number System What is the sum of the local values of the digits 2, 3, 4, 5 in the number 2345? 2435 2345 2105 5243 2435 2345 2105 5243 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2000 + 300 + 40 + 5 = 2345
Number System Pick the wrong number from the given number series. 3,4,10,33,135,685,4116 33 135 10 685 33 135 10 685 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The correct number is 136.3 x 1 + 1 = 44 x 2 + 2 = 1010 x 3 + 3 = 3333 x 4 + 4 = 136136 x 5 + 5 = 685685 x 6 + 6 = 4116
Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number. 50 25 75 12.5 50 25 75 12.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ x + y = 12 ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 40 45 30 22 1/2 40 45 30 22 1/2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System The simplest form of 1.5 : 2.5 is : 3 : 5 13 : 11 17 : 19 5 : 7 3 : 5 13 : 11 17 : 19 5 : 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3 : 5
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 74 79 83 71 74 79 83 71 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
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