Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 18 17 16 15 18 17 16 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2520 2510 2508 2504 2520 2510 2508 2504 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be? 10, 5 9, 6 7, 8 6, 9 10, 5 9, 6 7, 8 6, 9 ANSWER DOWNLOAD EXAMIANS APP
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 164 170 168 162 164 170 168 162 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System What is the value of ? in the following equations ? 72/? = ?/50 100 80 40 60 100 80 40 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System What should come in place of question mark (?)? 8 : 1 1 : : 72: 109 99 89 79 109 99 89 79 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let ? = xTherefore 8 : 11 : 72 : xTherefore x = (11 x 72) / 8 = 99
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