Number System Which one of the following is the sum of the numbers 1, 3, 5, 7, 9…. up to nth number? N(N + 1) N2 N2 + 1 N(N + 1)/2 N(N + 1) N2 N2 + 1 N(N + 1)/2 ANSWER DOWNLOAD EXAMIANS APP
Number System 106 * 106 - 94 * 94 = ? 2400 1904 1906 2000 2400 1904 1906 2000 ANSWER DOWNLOAD EXAMIANS APP
Number System Supply the missing figure : 2, 6, 12, 20, 30 ... 56 41 42 40 39 41 42 40 39 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 42
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 55 35 65 45 55 35 65 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System What is the difference between the largest number and the least number written with the digits 7, 3, 1, 4? 6048 6184 6084 5084 6048 6184 6084 5084 ANSWER DOWNLOAD EXAMIANS APP
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