Number System {(742)² ÷ 36} ÷ 2 = ? 423.5 421.5 422.5 420.5 423.5 421.5 422.5 420.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System The sum of three consecutive even numbers is 252. What is the sum of the smallest and the largest numbers? 171 169 168 170 171 169 168 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 168
Number System In an examination, 68% of the total examinees passed. If the number of failures is 248, the total number of examinees is 775 725 640 750 775 725 640 750 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Failed students are 32% which is 248.∴ Total = 24800/32 = 775
Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 168 162 164 170 168 162 164 170 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System √(17)² + (17)² + (5)² - 2 = ? 19 16 17 18 19 16 17 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 252 388 296 344 252 388 296 344 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four numbers be x, x + 2, x + 4 and x + 6.=> x + x + 2 + x + 4 + x + 6 = 36=> 4x + 12 = 36 => x = 6The numbers are 6, 8, 10 and 12.Sum of their squares = 62 + 82 + 102 + 122 = 36 + 64 + 100 + 144 = 344.
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