Number System A number when divided by 221 gives a remainder 43, what remainder will be obtained by dividing the same number 17? 5 10 11 9 5 10 11 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 221 + 43 = 264/17 = 9 (Remainder)
Number System In how many different ways can be the letters of the word PENCIL be arranged among themselves ? 510 720 860 640 510 720 860 640 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Total six letters are there and hence the number of arrangements = 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 25 23 24 26 25 23 24 26 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 average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b 29 years 31 years 28 years 30 years 29 years 31 years 28 years 30 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years
Number System 217 * 217 + 183 * 183 = ? 81268 80698 80578 79698 81268 80698 80578 79698 ANSWER DOWNLOAD EXAMIANS APP
Number System √360 - 225 x 2 + 379 = ? 20 18 17 19 20 18 17 19 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
EXAMIANS