Number System Complete the series : 81, 69, 58, 48, 39 ........ 29 31 30 28 29 31 30 28 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System (1024—263—233)÷(986—764— 156) =? None of these 8 6 10 None of these 8 6 10 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 8
Number System The product of two consecutive odd numbers is 4623. What is the product of the next two consecutive odd numbers ? 8795 6782 7745 5183 8795 6782 7745 5183 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √4623 = 6767 x 69 = 4623∴ Required product = 71 x 73 = 5183
Number System 5525 ÷ 17 = √? 112225 105625 99225 93025 112225 105625 99225 93025 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP √? = 5525/17 = 325∴ ? = (325)² = 105625
Number System If (83)² is subtracted from the square of a number, the answer so obtained is 8487. What is the number ? 179 163 146 124 179 163 146 124 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² - (83)² = 8487x² = 8487 + (83)²x² = 8487 + 6889x² = 15376Therefore, x² = 15376 x = 124
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 10 16 14 12 10 16 14 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
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