Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 860 510 720 640 860 510 720 640 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 √343 = ? 18 21 20 19 18 21 20 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 11 9 8 10 11 9 8 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 6 3.5 8 None of these 6 3.5 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
Number System Supply the missing figure : 3, 11, 8, 16, 13 .... 18 12 18 28 21 12 18 28 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 21
Number System In how many different ways can the letters of word "SENTENCE" be arranged ? 2360 3260 6460 3360 2360 3260 6460 3360 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 8!/3! 2! = 40320/12 = 3360
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