Number System Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers? 64, 16 60, 20 65, 15 62, 18 64, 16 60, 20 65, 15 62, 18 ANSWER DOWNLOAD EXAMIANS APP
Number System Find the smallest number which should be multiplied with 520 to make it a perfect square. 55 30 120 None of these 55 30 120 None of these ANSWER DOWNLOAD EXAMIANS APP
Number System If (17)3 is subtracted from the square of a number, the answer so obtained is 2143. What is the number ? 84 82 81 83 84 82 81 83 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x² - (17*17*17) = 2143or x² = 2143 + 4913 = 7056∴ x = 84
Number System One-eighth of a number is 76. What will be 54% of the number ? 328.32 332.32 321.32 318.32 328.32 332.32 321.32 318.32 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x Therefore, 1/8 of x = 76Therefore, x = 60854% of 608 = 608 x 54/100 = 328.32
Number System Which one of the following represents the sum of the first n even numbers? N(N – 1) N2 N(N + 1) N2+ 1 N(N – 1) N2 N(N + 1) N2+ 1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP N (N + 1)
Number System 6.4 x 8.5 x 25/3.2 x 12.5 = ? 4.5 5.6 3.4 2.3 4.5 5.6 3.4 2.3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 6.4 x 8.5 x 2.5/3.2 x 12.5 = 3.4
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