Number System The sum of the numbers is 264. If the first number be twice the second and third number be one-third of the first, then the second number is: 84 72 48 54 84 72 48 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the second number be x. Then, first number = 2x and third number = 2x/3.2x + x + 2x/3 = 26411x/3 = 264x = 72
Number System What is the sum of all the prime numbers from 20 to 40? 117 120 119 118 117 120 119 118 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System If the fractions 1/7, 3/5, 2/5, 5/6 and 9/11 are arranged in descending order of their values, which one will be the fourth number? 1/5 3/5 4/5 2/5 1/5 3/5 4/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/4 = 14. 3/5 = 6.2/5 = 4.5/6 = 83.9/11 = 82.Therefore, 83 > 82 > 6 > 14
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 54.7 42.6 45 42.1 54.7 42.6 45 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System What is 432 times 119 ? 51408 53408 50408 52408 51408 53408 50408 52408 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. 432 x 119 = 51408
Number System In how many different ways can the letters of the word "MOBILIZE" be arranged ? 17453 19765 18456 20160 17453 19765 18456 20160 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The word MOBILIZE has eight letters in which I comes twice ∴ Number of arrangements = 8!/2! = 20160
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