Number System If (74)² is added to the square of a number the answer so obtained is 7780. What is the number ? 49 48 50 47 49 48 50 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.or, x² + (74)² = 7780or, x² = 7780 - 5476 = 2304∴ x = 48
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 ? 2 4 1 3 2 4 1 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
Number System If the sum of one-half of a number exceeds one-third of that number by 7 1/3, the number is: 15 18 30 20 15 18 30 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,(1/2 x + 1/5 x) - 1/3 x = 22/311/30 x = 22/3x = 20
Number System A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder? 36 34 35 33 36 34 35 33 ANSWER DOWNLOAD EXAMIANS APP
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 373 353 343 363 373 353 343 363 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
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