Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 170 168 169 171 170 168 169 171 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System Given √2 = 1.414, the value of √8 + 2√32 - 3√128 + 4√50 is 8.784 8.584 8.484 8.684 8.784 8.584 8.484 8.684 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8.484
Number System When (21)² is subtracted from the square of a number the answer obtained is 1584. What is the number ? 35 55 65 45 35 55 65 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x² - (21)² = 1584= x² - 441 = 1584 = x² = 1584 + 441 = 2025∴ x = √2025 = 45
Number System What is the difference between the local values of 3 in the number 53403? 3003 2997 3030 0 3003 2997 3030 0 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3000 – 3 = 2997
Number System What is the sum of all the prime numbers from 20 to 40? 117 119 120 118 117 119 120 118 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 4/5 2/5 3/5 1/5 4/5 2/5 3/5 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
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