Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 920 625 712 824 920 625 712 824 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System 1051.64 - 159.42 - 96.84 + 162.37 - 940.26 + 504 = ? 521.49 491.49 501.49 511.49 521.49 491.49 501.49 511.49 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1718.01 - 1196.52 = 521.49
Number System 64% of 2650+40% 0f 320=? 2096 1824 1578 1247 2096 1824 1578 1247 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
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.
Number System On dividing number by 357, we get 39 as remainder. On dividing the same number by 17, what will be the remainder? 5 0 3 11 5 0 3 11 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 495 485 490 480 495 485 490 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
EXAMIANS