Number System What should come in place of the question mark (?) in the given number series ? 888, 888, 444, 148, ?, 7.4 39 36 37 38 39 36 37 38 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the missing number.Then888/888 = 1,888/444 = 2,444/148 = 3,148/x = 4= x = 148/4 = 37 and 37/7.4 = 5
Number System If the difference between a number and its three-fourth is 18, find the number. 72 61 68 57 72 61 68 57 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.According to the question,x - 3x/4 = 18= x/4 = 18= x = 4 x 18 = 72
Number System A number when, 28 subtracted from it reduces to its one third. What is the value of 50% of that number? 24 42 21 84 24 42 21 84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 2/3 x = 28 => x = 4242 * 1/2 = 21
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 678 652 692 689 678 652 692 689 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 24 25 26 23 24 25 26 23 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 How many numbers between 300 and 800 can be by using digits 2, 4, 5, 6 and 0 ? 48 52 56 36 48 52 56 36 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∴ Reqd . numbers = 3 x 4P2 = 3 x 12 = 36
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