Number System {3√4913}² = ? 121 333 289 225 121 333 289 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 22 1/2 45 30 40 22 1/2 45 30 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 720 510 640 860 720 510 640 860 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total six letters are there and hence the number of arrangements = 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 42.6 54.7 45 42.1 42.6 54.7 45 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System In how many ways can 5 boys be chosen from 6 boys and 4 girls so as to include exactly one girl ? 58 60 54 56 58 60 54 56 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.
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 495 480 485 490 495 480 485 490 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
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