Number System In how many different ways can the letters of the word 'LEASE' be arranged ? None of these 60 80 40 None of these 60 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System If 2^(2x-1) = 8^(3-x), then the value of x is: 2 5 9 6 2 5 9 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2
Number System Find the average of the following set of scores 450, 1050, 12, 390, 143, 286, 550, 999 490 495 485 480 490 495 485 480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required average score = (450 + 1050 + 12 + 390 + 143 + 286 + 550 + 999) / 8 = 3880 / 8 = 485
Number System Complete the series : 1, 8, 27, 64, 125, 216 ..... 353 363 343 373 353 363 343 373 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 343
Number System Look at this series: 1000, 200, 40, ... What number should come next? 8 24 14 2 8 24 14 2 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP This is a simple division series. Each number is divided by 5. Rule = (1st number / 5 = 2nd number) (2nd number / 5 = 3rd number)....Now, (1000 / 5 = 200), (200 / 5 = 40), (40 / 5 = 8)...So answer is a = 8.
Number System The difference between a two-digit number and the number obtained by interchanging the digits is 36. What is the difference of the two digits of the number ? 4 1 2 3 4 1 2 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) - (10y + x) = 36,9(x - y) = 36/9 = 4
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