Number System Three numbers are in ratio of 3: 4 :5. If the sum of first & third numbers is more than second number by 52, which will be largest number? 65 78 23 34 65 78 23 34 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 65
Number System {3√4913}² = ? 289 225 333 121 289 225 333 121 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (3√4913)² = (17)² = 289
Number System 3251 + 587 + 369 - ? = 3007 1250 1300 1200 1375 1250 1300 1200 1375 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 4207 - x = 3007 Then, x = 4207 - 3007 = 1200
Number System If A + B = 30 and AB = 94, What is the value of A² + B² ? 920 712 824 625 920 712 824 625 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (A + B)² = (30)² = 900A² + B² + 2AB = 900Therefore, A² + B² = 900 - 2 x 94 = 900 - 188 = 712
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 81 83 84 82 81 83 84 82 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System What should come in place of question mark (?) in the following number series ? 7, 176, 480, 1058, 2188, 4426, ? 8881 8882 8884 8888 8881 8882 8884 8888 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Series is (No. + 9²) x 2, (+8²) x 2, (+7²) x 2, (+6²) x 2.......
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