Number System How many of the following numbers are divisible by 132? 264, 396, 462, 792, 968, 2178, 5184, 6336 7 6 4 5 7 6 4 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 132 = 11 * 3 * 4Clearly, 968 is not divisible by 3None of 462 and 2178 is divisible by 4And, 5284 is not divisible by 11Each one of the remaining four numbers is divisible by each one of 4, 3 and 11.So, there are 4 such numbers.
Number System The digit in unit's place of a three digit number is thrice the digit in ten's place & the digit in hundred's place is two-third of the digit in ten's place. If the sum of three digits of number is 14 221 215 211 239 221 215 211 239 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the ten's digit be x.∴ Unit's digit = 3xHundered's digit = 2x/3∴ x + 3x + 2x/3 = 14= 3x + 9x + 2x = 14 x 3= 14x = 14 x 3= x = 3∴ Number = 239
Number System If A = 1, B = 3, C = 5 and so on, what do the numbers 3, 9, 7 stand for CAR BED CAT BAT CAR BED CAT BAT ANSWER EXPLANATION DOWNLOAD EXAMIANS APP BED
Number System In how many different ways can the letters of the word FORMULATE be arranged ? 382880 362880 372880 392880 382880 362880 372880 392880 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of letters = 9! = 9*8*7*6*5*4*3*2*1 = 362880
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 5/4 1/3 7/9 11/13 5/4 1/3 7/9 11/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System Find the number of factors of 300 excluding 1 and itself. 15 16 14 18 15 16 14 18 ANSWER DOWNLOAD EXAMIANS APP
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