Number System If the average of two numbers is 88.5 and one number is 5.5 less than the average. Find out the next number. 97 86 94 91 97 86 94 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 94
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2367 2410 2678 2520 2367 2410 2678 2520 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System If one-third of one fourth of a number is 15, then three-tenth of that number is: 35 54 45 25 35 54 45 25 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 What should come in place of (?) in the following series ? 10, 19, 30, 43, 58, ? 78 76 77 75 78 76 77 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The series is: +9, +11, +13, +15, +17
Number System How many numbers up to 200 are divisible by 2 and 3 both? 27 29 33 35 27 29 33 35 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 200/6 = 33 2/6 => 33 Numbers
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 860 720 510 640 860 720 510 640 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
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