Number System 3√68921 = ? 51 31 21 41 51 31 21 41 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 3√68921= 3√41 x 41 x 41= 41
Number System In how many different ways can the letters of the word 'LEASE' be arranged ? None of these 40 80 60 None of these 40 80 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The world LEASE consists of 5 letters in which E comes twice ∴ 51/21 = 5x4x3x2x1/2x1 = 60
Number System One half of a two digit number exceeds its one third by 6. What is the sum of the digits of the number? 5 7 9 3 5 7 9 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x/2 – x/3 = 6=> x =63 + 6 = 9
Number System If the following fractions 7/6, 6/7, 5/3, 8/13 and 6/5 are arranged in descending order, which will be the last in the series? 8/13 9/13 6/13 7/13 8/13 9/13 6/13 7/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/6 = 1.166, 6/7 = 0.857,5/3 = 1.66,8/13 = 0.615,6/5 = 1.2Therefore, 5/3 > 6/5 > 7/6 > 6/7 > 8/13
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 69 61 74 65 69 61 74 65 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the two consecutive odd numbers be 2x - 1 and 2x + 1.(2x - 1) (2x - 1) = 4095= 4x² - 1 = 4095= 4x² = 4096= x² = 1024∴ x = 32∴ The numbers are 63 and 65.Greater number = 65
Number System 35%of ?=242 394 487 693 542 394 487 693 542 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 693
EXAMIANS