Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 75 64 54 88 75 64 54 88 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 18 12 28 21 18 12 28 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System 4550 ÷ 25% of ? = 130 125 130 135 140 125 130 135 140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
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 69 49 39 59 69 49 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 39
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 83 82 84 81 83 82 84 81 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System The difference between 68% of a number and 35% of the same number is 1216. What is 28% of the number ? 1037.75 1027.75 1031.75 1043.75 1037.75 1027.75 1031.75 1043.75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be xTherefore 68x / 100 - 35x / 100 = 1216 Therefore x = 1216 x 100 / 33Therefore 28% of x = 28x / 100 = 1216 x 100 / 33 x 28 / 100= 1216 x 100 x 28 / 33 x 1/100 = 1031.75
EXAMIANS