Number System What is the average of the following set of numbers ? 173, 192, 198, 204, 211, 223, 227 210 204 234 222 210 204 234 222 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Avg = 173 + 192 + 198 + 204 + 211 + 223 + 227/7 = 1428/7 = 204
Number System Complete the series : 81, 69, 58, 48, 39 ........ 29 30 31 28 29 30 31 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System (2560 x 1.4) +(7400 x 0.6) =? 9160 7234 8024 6543 9160 7234 8024 6543 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8024
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 25 23 26 24 25 23 26 24 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be (x + 1) and x.Therefore, (x + 1)² - x² = 47x² + 2x + 1 - x² = 472x + 1 = 47Therefore, x = 46/2 = 23
Number System The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 83.5 82.5 85.5 84.5 83.5 82.5 85.5 84.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
Number System If all the fractions 3/10, 1/16, 4/11, 2/9, 1/7, 5/14 and 5/24 arranged in descending order of their values, then which one will be the third? 4/11 2/9 3/10 1/16 4/11 2/9 3/10 1/16 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/10 = 0.3, 1/16 = 0.0625, 4/11 = 0.36, 2/9 = 0.22, 1/7 = 0.14, 5/14 = 0.36 and 5/24 = 0.214/11 > 5/14 > 3/10 > 2/9 > 5/24 > 1/7 > 1/163/10 will be the third.
EXAMIANS