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? 29 92 Cannot be determined 70 29 92 Cannot be determined 70 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 Let R = qs—4. When s=8, R=16. When s=10, R is equal to 22 20 21 23 22 20 21 23 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System (12.11)2 + (?)2 = 732.2921 24.2 14.2 20.2 17.2 24.2 14.2 20.2 17.2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 24.2
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 15 11 9 13 15 11 9 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System The average of five consecutive even numbers A, B, C, D and E is 54. What is the product of'B' and 'E' ? 3016 4098 2871 1456 3016 4098 2871 1456 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because, The even numbers are consecutive and their average is 54.∴ The number C will be 54.∴ A = 50, B = 52, D = 56, E = 58B x E = 52 x 58 = 3016
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 84.5 83.5 85.5 82.5 84.5 83.5 85.5 82.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
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