Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1280 1260 1300 1240 1280 1260 1300 1240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System 3251 + 587 + 369 - ? = 3007 1375 1200 1300 1250 1375 1200 1300 1250 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200
Number System The number of prime factors of (6)10×(7)17×(55)27 91 41 61 101 91 41 61 101 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 91
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 640 510 860 720 640 510 860 720 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 7.98 x 3.75 + 1.28 x 15.5 = ? 48.765 47.765 49.765 46.765 48.765 47.765 49.765 46.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 21 24 42 84 21 24 42 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
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