Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 204 210 234 222 204 210 234 222 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System When the square of a number is substracted from (68)², the answer so obtained is 2508. What is the number ? 45 46 44 47 45 46 44 47 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (68)² - x² = 2508Therefore, x² = 4624 = 2508Therefore, x = root of 2116 = 46
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 13 9 1 11 13 9 1 11 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
Number System Complete the series : 11, 12, 17, 18, 23, 24 ... 30 12 None of these 14 30 12 None of these 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP None of these
Number System 63.602 + 153.756 + 94.754 - 84.321 - 122.204 = ? 142.587 141.587 143.587 140.587 142.587 141.587 143.587 140.587 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 312.112 - 170.525 = 141.587
Number System In how many ways can 5 boys be chosen from 6 boys and 4 girls so as to include exactly one girl ? 60 56 54 58 60 56 54 58 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP One girl can be chosen in 4C1 = 4 ways and 4 boys can be chosen in 6C4 = 15 ways ∴ Total number of ways = 4 x 15 = 60 ways.
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