Number System 486+32×25—59=? 596 528 567 582 596 528 567 582 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 528
Number System If the product of two successive positive integers is 4692, what is the smaller number ? 66 64 68 70 66 64 68 70 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ∵ 68 x 69 = 4692
Number System 16.23 x 12.9 + 17.32 = ? None of these 236.687 226.687 246.687 None of these 236.687 226.687 246.687 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 16.23 x 12.9 + 17.32= 209.367 + 17.32= 226.687
Number System The product of two consecutive odd numbers is 4095 What is the greater number ? 61 65 74 69 61 65 74 69 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 If the fractions 1/7, 3/5, 2/5, 5/6 and 9/11 are arranged in descending order of their values, which one will be the fourth number? 3/5 1/5 4/5 2/5 3/5 1/5 4/5 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/4 = 14. 3/5 = 6.2/5 = 4.5/6 = 83.9/11 = 82.Therefore, 83 > 82 > 6 > 14
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 12 16 10 14 12 16 10 14 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
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