Number System What is the missing number in this series? 8 2 14 6 11 ? 14 6 18 12 9 3 2 7 9 3 2 7 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9
Number System √(17)² + (17)² + (5)² - 2 = ? 19 16 17 18 19 16 17 18 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System {3√4913}² = ? 289 333 121 225 289 333 121 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? 40 60 None of these 80 40 60 None of these 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System Two numbers are in the ratio 3:5. If 9 be subtracted from each, they are in the ratio of 9:17. The first number is: 30 36 18 27 30 36 18 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (3x-9):(5x-9) = 9:17 x = 12 => 3x = 36
Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 5/9 3/9 6/9 4/9 5/9 3/9 6/9 4/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
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