Number System The product of two consecutive position odd numbers is 6723. What is the smaller number? 74 83 79 71 74 83 79 71 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP n x (n + 2) = 6723= n² + 2n - 6723 = 0= n² + 83n - 81n - 6723 = 0= n(n + 83) - 81 (n + 83) = 0Therefore, (n - 81) (n + 83) = 0Therefore, n = 81, n + 2 = 83
Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 11 15 17 13 11 15 17 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 5 9 6 2 5 9 6 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2504 2520 2510 2508 2504 2520 2510 2508 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System If three eighth of a number is 141. What will be the approximately value of 32.08% of this number? 120 160 60 90 120 160 60 90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/8 = 141 => x= 376376 * 32.08/100 = 120
Number System (1024—263—233)÷(986—764— 156) =? 10 None of these 6 8 10 None of these 6 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
EXAMIANS