Number System √360 - 225 x 2 + 379 = ? 19 18 17 20 19 18 17 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
Number System On dividing 2272 as well as 875 by 3-digit number N, we get the same remainder. The sum of the digits of N is: 11 12 10 13 11 12 10 13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Clearly, (2272 - 875) = 1397, is exactly divisible by N.Now. 1397 = 11 * 127The required 3-digit number is 127, the sum of whose digit is 10.
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 83/77 93/77 73/77 77/73 83/77 93/77 73/77 77/73 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
Number System The sum of four consecutive even numbers is 36. Find the sum of the squares of these numbers? 252 296 344 388 252 296 344 388 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 The sum of two numbers is 165 and the difference between them is 9. What is the average of these two numbers ? 82.5 84.5 83.5 85.5 82.5 84.5 83.5 85.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x + y = 165x - y = 92x = 174 ∴ x = 87 and y = 78∴ x + y/2 = 165/2 = 82.5
EXAMIANS