Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2504 2520 2508 2510 2504 2520 2508 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 7 9 3 2 7 9 3 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System Radha's present age is three years less than twice her age 12 years ago. Also the respective ratio between Raj's present age and Radha's present age is 4 : 9. What will be Raj's age after 5 years ? 17 years 14 years 16 years 15 years 17 years 14 years 16 years 15 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let Radha's present age = x years.∴ x = 2 (x = 12) - 3= x = 2x - 24 - 3= x = 27∴ Raja's present age = 4/9 x 27= 12 years ∴ Raja's age after 5 years = 12 + 5 = 17 years
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 6/13 7/13 9/13 8/13 6/13 7/13 9/13 8/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System What is the sum of all even numbers from 1 to 701? 122850 122500 123850 122550 122850 122500 123850 122550 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 700/2 = 350350 * 351 = 122850
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? 6 None of these 3.5 8 6 None of these 3.5 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8