Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 344 296 388 252 344 296 388 252 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2508 2520 2504 2510 2508 2520 2504 2510 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 23 24 26 25 23 24 26 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System Which is the smallest fractions among the following ? 13/15 11/13 15/19 27/31 13/15 11/13 15/19 27/31 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 11/13 = 0.8461,13/15 = 0.8666,27/31 = 0.87,15/19 = 0.789
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 24 30 20 Cannot be determined 24 30 20 ANSWER DOWNLOAD EXAMIANS APP
Number System What is the value of 8/11 of 5/7 of 96% of 28875 ? 12900 15400 14400 13800 12900 15400 14400 13800 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number = 8 x 5 x 96 x 28875/11 x 7 x 100 = 14400
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