Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 64 54 75 88 64 54 75 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System If the sum and difference of two numbers are 20 and 8 respectively, then the difference of their square is: 28 180 12 160 28 180 12 160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, x + y = 20 and x - y = 8x2 - y2 = (x + y)(x - y) = 20 * 8 = 160.
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? 39 59 69 49 39 59 69 49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System If 5/7 of a number is 145, what is 180% of that number ? 355.4 365.4 345.4 375.4 355.4 365.4 345.4 375.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference of the two digits of the number ? 3 2 4 1 3 2 4 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 3892 6489 2883 2893 3892 6489 2883 2893 ANSWER DOWNLOAD EXAMIANS APP
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