Number System The difference between two integers is 5. Their product is 500. Find the numbers. 15, 20 21, 26 30, 25 20, 25 15, 20 21, 26 30, 25 20, 25 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the integers be x and (x + 5). Then, x(x + 5) = 500 x2 + 5x - 500 = 0 (x + 25)(x - 20) = 0 x = 20So, the numbers are 20 and 25.
Number System In how many different ways can the letters of word "COLLEGE" be arranged ? 1300 1280 1240 1260 1300 1280 1240 1260 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of ways = 7!/2!2! = 1260(∵ L and E come twice)
Number System If a number is subtracted from its square we get 272. Find the number? 24 22 14 17 24 22 14 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 – x = 272 => x =17
Number System How many figures are required for numbering the pages of a book containing 1000 pages? 2883 6489 2893 3892 2883 6489 2893 3892 ANSWER DOWNLOAD EXAMIANS APP
Number System √343 = ? 19 20 18 21 19 20 18 21 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √343 = 18
Number System If 1.5 x= 0.04 y, then the value of (y-x) (y+x) is: 77/73 83/77 93/77 73/77 77/73 83/77 93/77 73/77 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 73/77
EXAMIANS