Number System What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 6184 5084 6048 6084 6184 5084 6048 6084 ANSWER DOWNLOAD EXAMIANS APP
Number System Which choice provides the answer in the following : If 2 * 3 = 36, 5 * 4 = 400, 6 * 2 = 144, 3 * 3 = 81; then, 5 * 5 = ? 425 325 525 625 425 325 525 625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 625
Number System Let R = qs—4. When s=8, R=16. When s=10, R is equal to 21 20 23 22 21 20 23 22 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 245 188 162 141 245 188 162 141 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 3.5 None of these 6 8 3.5 None of these 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System Which one of the following represents the sum of the first n even numbers? N2 N2+ 1 N(N – 1) N(N + 1) N2 N2+ 1 N(N – 1) N(N + 1) ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
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