Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 81 82 84 83 81 82 84 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
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 14 221 239 211 215 221 239 211 215 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 The square root of 0.0081 is: 0.009 0.09 0.9 0.91 0.009 0.09 0.9 0.91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.09
Number System What is 846 times 323 ? 283298 264258 293798 273258 283298 264258 293798 273258 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 846 x 323 = 273258
Number System In how many different ways can the letters of the word "MOBILIZE" be arranged ? 19765 17453 18456 20160 19765 17453 18456 20160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word MOBILIZE has eight letters in which I comes twice ∴ Number of arrangements = 8!/2! = 20160
Number System Difference between two numbers is 5, six times of the smaller lacks by 6 from the four times of the greater. Find the numbers? 12, 9 12, 7 11, 6 10, 5 12, 9 12, 7 11, 6 10, 5 ANSWER DOWNLOAD EXAMIANS APP
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