Number System A certain number successively divided by 2, 5 and 7 leaves remainders 1, 2 and 3 respectively. When the same number is divided by 70, what is the remainder? 36 34 33 35 36 34 33 35 ANSWER DOWNLOAD EXAMIANS APP
Number System If the three fourth of a number is subtracted from the number; the value so, obtained is 163. What is that number ? 692 652 689 678 692 652 689 678 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number x (1 - 3/4) = 163∴ Number = 163 x 4 = 652
Number System Find the least number with which 16200 should be multiplied, to make it a perfect cube. 360 48 36 45 360 48 36 45 ANSWER DOWNLOAD EXAMIANS APP
Number System If the sum of four consecutive numbers is 370, which the following is the third lowest number among them 90 89 92 91 90 89 92 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the four consecutive numbers be x, (x + 1), (x + 2), (x + 3) thenx + (x + 1) + (x + 2) + (x + 3) = 370= 4x + 6 = 370∴ x = 364/4 = 91∴ third lowest number among them = x + 1= 91 + 1 = 92
Number System √(17)² + (17)² + (5)² - 2 = ? 19 16 18 17 19 16 18 17 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √49 + 289 + 25 - 2 = √361 = 19
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 8 32 None of these 27 8 32 None of these 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
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