Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 720 640 510 860 720 640 510 860 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 In how many different ways can the letters of the word CORPORATION be arranged ? 3326400 2326400 1326400 None of these 3326400 2326400 1326400 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP CORPORATION = 11 letters 'O' comes thrice,'R' twice.∴ total no. of ways = 111/3121 = 3326400
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 692 652 678 689 692 652 678 689 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 54 45 25 35 54 45 25 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,1/3 of 1/4 of x = 15x = 15 * 12 = 180So, required number = (3/10 * 180) = 54.
Number System √360 - 225 x 2 + 379 = ? 17 19 18 20 17 19 18 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2678 2410 2367 2520 2678 2410 2367 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
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