Number System If the difference between the squares of two consecutive numbers is 47, what is the smaller number ? 26 25 23 24 26 25 23 24 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 124, 235, 447, 760, 1174, ? 1689 1589 1489 1389 1689 1589 1489 1389 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP +111, +212, +313, +414
Number System What least number shall be added to 4700 to make it a perfect square ? 71 91 81 61 71 91 81 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
Number System Complete the series : 1, 2, 3, 5, 8, 13 .... 9 7 4 1 9 7 4 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1
Number System (1024—263—233)÷(986—764— 156) =? 10 6 8 None of these 10 6 8 None of these ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? 101 103 97 99 101 103 97 99 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x2 - 732 = 5280 x2 = 5280 + (70+3)2 = 5280 + 4900 + 420 + 9 = 10609= 10000 + 2(100)(3) + 32 = (100 + 3)2x = 100 + 3 = 103.
EXAMIANS