Number System (√6 + 1)² = ? + 2√6 8 6 7 5 8 6 7 5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System 8988 / 8 / 4 = ? 4494 561.75 280.875 2247 4494 561.75 280.875 2247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8988 * 1/8 * 1/4 = 2247/8 = 280.875
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 4 1 Nothing can be said. 6 4 1 Nothing can be said. 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
Number System What is the sum of all even numbers from 1 to 701? 122850 122550 122500 123850 122850 122550 122500 123850 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
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 14 211 221 239 215 211 221 239 215 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 √(17)² + (17)² + (5)² - 2 = ? 19 18 17 16 19 18 17 16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
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