Number System In how many different ways can the letters of the word ANATOMY be arranged ? 2510 2520 2508 2504 2510 2520 2508 2504 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Here total letters are 7 but A comes twice.Therefore, Numbers of arrangements = 7!/2! = 2520
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 14849 13849 12849 11849 14849 13849 12849 11849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System If x + y = 61 and xy = 888, What is the value of x²+ y² ? 1945 1975 1965 1955 1945 1975 1965 1955 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Because (x + y)² = x² + y² + 2xy∴ x² + y² = (x + y)² - 2xy∴ x² + y² = (61)² - 2 x 888= 3721 - 1776 = 1945
Number System The product of two successive numbers is 4556. Which of the following is the larger of the two numbers? 63 78 68 67 63 78 68 67 ANSWER DOWNLOAD EXAMIANS APP
Number System A laborer is engaged for 30 days on the condition that he receives Rs.25 for each day he works and is fined Rs.7.50 for each day is absent. He gets Rs.425 in all. For how many days was he absent? 9 10 8 6 9 10 8 6 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 480 490 485 495 480 490 485 495 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
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