Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 38 39 37 36 38 39 37 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 99 103 101 97 99 103 101 97 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2520 2508 2504 2510 2520 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 A certain number of two digits is three times the sum of its digits. If 45 be added to it, the digits are reversed. The number is: 27 22 30 24 27 22 30 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 27
Number System If 4 2/3 is subtracted form 10 1/2 and the difference is multiplied by 450, then what is the final answer? 2875 None of these 2675 2725 2875 None of these 2675 2725 ANSWER DOWNLOAD EXAMIANS APP
Number System In a five-litre mixture of milk and water the portion of water is 30%. How much milk should be added to the mixture so that the portion of water reduces to 5% ? 25 litre 17 litre 29 litre 21 litre 25 litre 17 litre 29 litre 21 litre ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Original mixture = 5 litre; Milk = 3.5 litre;Water = 1.5 litre Let x litre of milk be added so thatthe mixture becomes (x + 5) litres and the percentage of water becomes 5%So, 1.5 = (x + 5) x 5/10030 = x + 5∴ x = 25 litre
EXAMIANS