Number System The square root of 3 + “5 is : “3 /2 - 1/”2 “5 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) “3 /2 - 1/”2 “5 /2 - 1/”2 “3 /2 + 1/”2 “(5/2) + “(1/2) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP “(5/2) + “(1/2)
Number System The sum of the digits of a two digit number is 12. If the new number formed by reversing the digits is greater than the original number by 54, then what will be the original number? 59 49 69 39 59 49 69 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 74 83 71 79 74 83 71 79 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
Number System If the difference between a number and two-fifths of that number is 45 what is the number ? 76 75 77 78 76 75 77 78 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x ∴ x - 2x/5 = 45∴ x = 75
Number System 432+2170+35=? 523 729 678 494 523 729 678 494 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 494
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 89 91 35 75 89 91 35 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
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