Number System If one third of 3/4 of a number is 21. Then find the number? 84 63 630 840 84 63 630 840 ANSWER DOWNLOAD EXAMIANS APP
Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2504 2510 2520 2508 2504 2510 2520 2508 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System A gardener wants to plant trees in his garden in such a way that the number of trees in each row should be the same. If there are 4 rows or 5 rows or 6 rows, then no tree will be left. Find the least 60 120 30 240 60 120 30 240 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The least number of trees that are required = LCM(4, 5, 6) = 60.
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 495 480 485 490 495 480 485 490 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System 17580 x 1.8 - 13720 x 2.1 = ? x 2.4 1120 1180 1160 1140 1120 1180 1160 1140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2.4 x ? = 31644 - 28812 = 2832∴ ? = 2832/2.4= 1180
Number System The sum of the ages of a son and father is 65 years. After 5 years the age of father will be double of the age of son. What is the age of son ? 17 years 20 years 18 years 19 years 17 years 20 years 18 years 19 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the age of the son be x and the age of the father be y.Therefore, x + y = 65 ..........(i)or, 2 x (x + 5) = (y + 5)or, 2x + 10 = y + 5or, 2x - y = 5 ...................(ii)From equations (i) and (ii), x = 20, y = 45
EXAMIANS